CVE-2026-74625

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74625", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.921Z", "datePublished": "2026-08-22T15:32:07.929Z", "dateUpdated": "2026-10-16T19:06:03.037Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-25T05:40:48.341Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: bridge: release template ct on non-IP path\n\nA bridge nftables ct zone set rule can attach a conntrack template to\nan skb before nf_ct_bridge_pre() sees it. For non-IPv4 and non-IPv6\nEtherTypes, nf_ct_bridge_pre() currently overwrites skb->_nfct with\nIP_CT_UNTRACKED without releasing the existing template reference.\n\nThat makes the per-cpu template, and any temporary templates allocated\nfor concurrent use, unreachable and leaks memory until the host runs out\nof slab.\n\nReset the skb conntrack state before marking the frame untracked so the\nexisting template reference is dropped on the non-IP path."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:N - Non-IP L2 frames (ARP/LLDP) injected into a Linux bridge reach NF_BR_PRE_ROUTING via br_handle_frame\u2192nf_hook_bridge_pre; on overlay/container hosts (VXLAN/GRE bridges in Docker/k8s/OpenStack) remote peers can deliver those frames across routed networks to the victim bridge port.\nAC:L - Once a bridge nftables ct zone set rule runs before NF_IP_PRI_CONNTRACK (-200), every non-IPv4/IPv6 EtherType frame deterministically leaks template references; the attacker controls rule priority, zone value, and can flood ARP/LLDP to accelerate the leak without races.\nPR:N - On bridge firewalls/routers with deployed nftables ct zone marking, exploitation needs only unauthenticated L2 packet delivery\u2014no host UID, capability, or namespace privilege; CAP_NET_ADMIN (obtainable via user namespaces) is an alternate Low path for self-setup but not required on pre-configured appliances.\nUI:N - Bridge netfilter processes received frames automatically in softirq; no victim mount, click, or administrative action is required beyond normal bridge forwarding of attacker-supplied non-IP traffic.\nS:U - Impact is unbounded kernel slab consumption from leaked nf_conn template objects within the host kernel; it does not cross VM, container, IOMMU, or hypervisor security boundaries.\nC:N - The bug is a missing nf_conntrack_put()\u2014a reference-count leak\u2014not a use-after-free, out-of-bounds read, or disclosure primitive; orphaned templates are unreachable and their contents are never returned to the attacker.\nI:N - Only template reference counts are leaked via skb->_nfct overwrite; no heap corruption, type confusion, or attacker-controlled writes occur, so integrity cannot be compromised beyond availability loss from memory pressure.\nA:H - Each leaked per-CPU and temporary conntrack template is never freed; sustained non-IP frame flooding can exhaust kernel slab until OOM, causing severe host unavailability or panic on memory-allocation failure paths."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/bridge/netfilter/nf_conntrack_bridge.c"], "versions": [{"version": "3c171f496ef57774f8e5d509923372549734877f", "lessThan": "fc90df37540627d092af770215fb4b7befe9409b", "status": 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"3c171f496ef57774f8e5d509923372549734877f", "lessThan": "d45cc8020d7c0a9f01dee42ff5c40bc14c9af72f", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/bridge/netfilter/nf_conntrack_bridge.c"], "versions": [{"version": "5.3", "status": "affected"}, {"version": "0", "lessThan": "5.3", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.265", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.216", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.183", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.152", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.104", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.45", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.9", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "5.10.265"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "5.15.216"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.1.183"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.6.152"}, 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"https://git.kernel.org/stable/c/46d559f00b1ab1d114f92d2f16c5ef0093b3b9dd"}, {"url": "https://git.kernel.org/stable/c/c58d34fe8b7e47bb0b350a7625023b1261342be5"}, {"url": "https://git.kernel.org/stable/c/7cff440d702616022769f2643168d7f9820547a0"}, {"url": "https://git.kernel.org/stable/c/d45cc8020d7c0a9f01dee42ff5c40bc14c9af72f"}], "title": "netfilter: bridge: release template ct on non-IP path", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-74625", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-16T19:02:46.015893Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T19:06:03.037Z"}}]}}

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the attacker controls rule priority, zone value, and can flood ARP/LLDP to accelerate the leak without races.\nPR:N - On bridge firewalls/routers with deployed nftables ct zone marking, exploitation needs only unauthenticated L2 packet delivery\u2014no host UID, capability, or namespace privilege; CAP_NET_ADMIN (obtainable via user namespaces) is an alternate Low path for self-setup but not required on pre-configured appliances.\nUI:N - Bridge netfilter processes received frames automatically in softirq; no victim mount, click, or administrative action is required beyond normal bridge forwarding of attacker-supplied non-IP traffic.\nS:U - Impact is unbounded kernel slab consumption from leaked nf_conn template objects within the host kernel; it does not cross VM, container, IOMMU, or hypervisor security boundaries.\nC:N - The bug is a missing nf_conntrack_put()\u2014a reference-count leak\u2014not a use-after-free, out-of-bounds read, or disclosure primitive; orphaned templates are unreachable and their contents are never returned to the attacker.\nI:N - Only template reference counts are leaked via skb->_nfct overwrite; no heap corruption, type confusion, or attacker-controlled writes occur, so integrity cannot be compromised beyond availability loss from memory pressure.\nA:H - Each leaked per-CPU and temporary conntrack template is never freed; sustained non-IP frame flooding can exhaust kernel slab until OOM, causing severe host unavailability or panic on memory-allocation failure paths."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "3c171f496ef57774f8e5d509923372549734877f", "lessThan": "fc90df37540627d092af770215fb4b7befe9409b", "versionType": "git"}, {"status": "affected", "version": "3c171f496ef57774f8e5d509923372549734877f", "lessThan": "daa6e070f8e1e7a4dddec8b64ca37663f8cda917", "versionType": "git"}, {"status": "affected", "version": "3c171f496ef57774f8e5d509923372549734877f", "lessThan": "bd7b16494dacf87e9336a1dcfdada83b9e40edd6", "versionType": "git"}, {"status": "affected", "version": "3c171f496ef57774f8e5d509923372549734877f", "lessThan": "6ea88401e10e04e0b3bb7a7adea54932fb60b93b", "versionType": "git"}, {"status": "affected", "version": "3c171f496ef57774f8e5d509923372549734877f", "lessThan": "46d559f00b1ab1d114f92d2f16c5ef0093b3b9dd", "versionType": "git"}, {"status": "affected", "version": "3c171f496ef57774f8e5d509923372549734877f", "lessThan": "c58d34fe8b7e47bb0b350a7625023b1261342be5", "versionType": "git"}, {"status": "affected", "version": "3c171f496ef57774f8e5d509923372549734877f", "lessThan": "7cff440d702616022769f2643168d7f9820547a0", "versionType": "git"}, {"status": "affected", "version": "3c171f496ef57774f8e5d509923372549734877f", "lessThan": "d45cc8020d7c0a9f01dee42ff5c40bc14c9af72f", "versionType": "git"}], "programFiles": ["net/bridge/netfilter/nf_conntrack_bridge.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.3"}, {"status": "unaffected", "version": "0", "lessThan": "5.3", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.265", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.216", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.183", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.152", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.104", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.45", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.1.9", "versionType": "semver", "lessThanOrEqual": "7.1.*"}, {"status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/bridge/netfilter/nf_conntrack_bridge.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/fc90df37540627d092af770215fb4b7befe9409b"}, {"url": "https://git.kernel.org/stable/c/daa6e070f8e1e7a4dddec8b64ca37663f8cda917"}, {"url": "https://git.kernel.org/stable/c/bd7b16494dacf87e9336a1dcfdada83b9e40edd6"}, {"url": "https://git.kernel.org/stable/c/6ea88401e10e04e0b3bb7a7adea54932fb60b93b"}, {"url": "https://git.kernel.org/stable/c/46d559f00b1ab1d114f92d2f16c5ef0093b3b9dd"}, {"url": "https://git.kernel.org/stable/c/c58d34fe8b7e47bb0b350a7625023b1261342be5"}, {"url": "https://git.kernel.org/stable/c/7cff440d702616022769f2643168d7f9820547a0"}, {"url": "https://git.kernel.org/stable/c/d45cc8020d7c0a9f01dee42ff5c40bc14c9af72f"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: bridge: release template ct on non-IP path\n\nA bridge nftables ct zone set rule can attach a conntrack template to\nan skb before nf_ct_bridge_pre() sees it. For non-IPv4 and non-IPv6\nEtherTypes, nf_ct_bridge_pre() currently overwrites skb->_nfct with\nIP_CT_UNTRACKED without releasing the existing template reference.\n\nThat makes the per-cpu template, and any temporary templates allocated\nfor concurrent use, unreachable and leaks memory until the host runs out\nof slab.\n\nReset the skb conntrack state before marking the frame untracked so the\nexisting template reference is dropped on the non-IP path."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.265", "versionStartIncluding": "5.3"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.216", "versionStartIncluding": "5.3"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.183", "versionStartIncluding": "5.3"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.152", "versionStartIncluding": "5.3"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.104", "versionStartIncluding": "5.3"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.18.45", "versionStartIncluding": "5.3"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.1.9", "versionStartIncluding": "5.3"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.2", "versionStartIncluding": "5.3"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-25T05:40:48.341Z"}}}, "cveMetadata": {"cveId": "CVE-2026-74625", "state": "PUBLISHED", "dateUpdated": "2026-10-16T19:06:03.037Z", "dateReserved": "2026-08-15T05:44:03.921Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2026-08-22T15:32:07.929Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/bridge/netfilter/nf_conntrack_bridge.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "fc90df37540627d092af770215fb4b7befe9409b", "status": "affected", "version": "3c171f496ef57774f8e5d509923372549734877f", "versionType": "git"}, {"lessThan": "daa6e070f8e1e7a4dddec8b64ca37663f8cda917", "status": "affected", "version": "3c171f496ef57774f8e5d509923372549734877f", "versionType": "git"}, {"lessThan": "bd7b16494dacf87e9336a1dcfdada83b9e40edd6", "status": "affected", "version": "3c171f496ef57774f8e5d509923372549734877f", "versionType": "git"}, {"lessThan": "6ea88401e10e04e0b3bb7a7adea54932fb60b93b", "status": "affected", "version": "3c171f496ef57774f8e5d509923372549734877f", "versionType": "git"}, {"lessThan": "46d559f00b1ab1d114f92d2f16c5ef0093b3b9dd", "status": "affected", "version": "3c171f496ef57774f8e5d509923372549734877f", "versionType": "git"}, {"lessThan": "c58d34fe8b7e47bb0b350a7625023b1261342be5", "status": "affected", "version": "3c171f496ef57774f8e5d509923372549734877f", "versionType": "git"}, {"lessThan": "7cff440d702616022769f2643168d7f9820547a0", "status": "affected", "version": "3c171f496ef57774f8e5d509923372549734877f", "versionType": "git"}, {"lessThan": "d45cc8020d7c0a9f01dee42ff5c40bc14c9af72f", "status": "affected", "version": "3c171f496ef57774f8e5d509923372549734877f", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/bridge/netfilter/nf_conntrack_bridge.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.3"}, {"lessThan": "5.3", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.265", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.216", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.183", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.152", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.104", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.45", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.9", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: bridge: release template ct on non-IP path\n\nA bridge nftables ct zone set rule can attach a conntrack template to\nan skb before nf_ct_bridge_pre() sees it. For non-IPv4 and non-IPv6\nEtherTypes, nf_ct_bridge_pre() currently overwrites skb->_nfct with\nIP_CT_UNTRACKED without releasing the existing template reference.\n\nThat makes the per-cpu template, and any temporary templates allocated\nfor concurrent use, unreachable and leaks memory until the host runs out\nof slab.\n\nReset the skb conntrack state before marking the frame untracked so the\nexisting template reference is dropped on the non-IP path."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnetfilter: bridge: liberar plantilla ct en la ruta no-IP\n\nUna regla de conjunto de zona ct de nftables de puente puede adjuntar una plantilla de conntrack a un skb antes de que nf_ct_bridge_pre() lo vea. Para EtherTypes no-IPv4 y no-IPv6, nf_ct_bridge_pre() actualmente sobrescribe skb -> _nfct con IP_CT_UNTRACKED sin liberar la referencia de plantilla existente.\n\nEso hace que la plantilla por-CPU, y cualquier plantilla temporal asignada para uso concurrente, sea inalcanzable y fuga memoria hasta que el host se quede sin slab.\n\nRestablecer el estado de conntrack del skb antes de marcar el frame como no rastreado para que la referencia de plantilla existente sea eliminada en la ruta no-IP."}], "id": "CVE-2026-74625", "lastModified": "2026-10-16T20:17:47.633", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-74625", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T19:02:46.015893Z", "version": "2.0.3"}}]}, "published": "2026-08-22T16:16:35.390", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/46d559f00b1ab1d114f92d2f16c5ef0093b3b9dd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6ea88401e10e04e0b3bb7a7adea54932fb60b93b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7cff440d702616022769f2643168d7f9820547a0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bd7b16494dacf87e9336a1dcfdada83b9e40edd6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c58d34fe8b7e47bb0b350a7625023b1261342be5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d45cc8020d7c0a9f01dee42ff5c40bc14c9af72f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/daa6e070f8e1e7a4dddec8b64ca37663f8cda917"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fc90df37540627d092af770215fb4b7befe9409b"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: netfilter: bridge: release template ct on non-IP path", "id": "2521357", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2521357"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-772", "details": ["A flaw was found in the Linux kernel's netfilter bridge component. This vulnerability allows for a memory leak when the system processes non-IPv4 and non-IPv6 network traffic through a bridge nftables connection tracking rule. The system fails to release an existing connection tracking template reference, leading to a gradual accumulation of unreleased memory. This can ultimately result in a denial of service (DoS) condition as the host runs out of available memory."], "name": "CVE-2026-74625", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-22T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-74625\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-74625\nhttps://lore.kernel.org/linux-cve-announce/2026082220-CVE-2026-74625-e32d@gregkh/T"], "threat_severity": "Moderate"}

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