CVE-2026-23315

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"confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-23315", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-05T21:26:43.914408Z", "version": "2.0.3"}}]}, "published": "2026-03-25T11:16:27.897", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0fb3b94a9431a3800717e5c3b6fa2e1045a15029"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4e10a730d1b511ff49723371ed6d694dd1b2c785"}, {"source": 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{"bugzilla": {"description": "kernel: wifi: mt76: Fix possible oob access in mt76_connac2_mac_write_txwi_80211()", "id": "2451177", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2451177"}, "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-787", "details": ["A flaw was found in the Linux kernel's `mt76` Wi-Fi driver. This vulnerability, an out-of-bounds (OOB) access, occurs due to an insufficient check of frame length before accessing management fields within the `mt76_connac2_mac_write_txwi_80211()` function. An attacker could potentially exploit this to cause memory corruption, which may lead to system instability or a denial of service (DoS)."], "name": "CVE-2026-23315", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "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": "2026-03-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-23315\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-23315\nhttps://lore.kernel.org/linux-cve-announce/2026032529-CVE-2026-23315-9ac1@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[577dbc6c656da6997dddc6cf842b7954588f2d4e,84419556359bc96d3fe1623d47a64c86542566cc)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[577dbc6c656da6997dddc6cf842b7954588f2d4e,7ae7b093b7dba9548a3bc4766b9364b97db4732d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[577dbc6c656da6997dddc6cf842b7954588f2d4e,7b692dff8df0ba5feb8df00f27d906d6eb1fe627)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[577dbc6c656da6997dddc6cf842b7954588f2d4e,9612d91f617231e03c49cb9b0c02f975a3b4f51f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[577dbc6c656da6997dddc6cf842b7954588f2d4e,0fb3b94a9431a3800717e5c3b6fa2e1045a15029)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[577dbc6c656da6997dddc6cf842b7954588f2d4e,4e10a730d1b511ff49723371ed6d694dd1b2c785)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.10"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.10)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.167,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.130,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.77,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.17,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.7,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0-rc3,*)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "analysis": {"en": {"generated_at": "2026-04-28T22:11:50.129281+00:00", "value": {"mitigation_remediation": ["Apply the latest Linux kernel update that includes the commit fixing the out\u2011of\u2011bounds access.", "Reboot the system to ensure the updated kernel and driver are in use.", "If the Wi\u2011Fi interface must remain active, consider disabling the mt76 driver or applying a temporary kernel configuration change to block anomalous management frames."], "summary": {"action": "Apply patch", "impact": "Out\u2011of\u2011bounds memory access"}, "threat_synthesis": {"affected_systems": "The vulnerability is present in all Linux kernel releases that include the vulnerable mt76 driver code. Vendor information points to the Linux kernel itself, though no specific kernel version is listed in the advisory.", "description_and_impact": "A flaw in the Linux kernel's mt76 Wi\u2011Fi driver permits an out\u2011of\u2011bounds memory read through the function mt76_connac2_mac_write_txwi_80211() when the frame length is not validated. This can expose kernel memory contents or lead to further corruption, thereby compromising the confidentiality and integrity of the kernel.", "risk_and_exploitability": "The CVSS score of 7.1 indicates high severity, while an EPSS below 1% signals a low probability of exploitation. The flaw requires kernel execution, implying a local\u2011privilege or kernel\u2011level attack; remote exploitation is unlikely. The vulnerability is not in the CISA KEV catalog. The likely attack vector is inferred to be local."}}}}, "created": "2026-03-25T21:15:14.175408+00:00", "updated": "2026-04-28T22:15:41.371105+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}