CVE-2026-53296

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{"bugzilla": {"description": "kernel: mailbox: mailbox-test: free channels on probe error", "id": "2493734", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2493734"}, "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-825", "details": ["A flaw was found in the Linux kernel, specifically within the mailbox-test component. This vulnerability occurs when channels are not correctly released during a probe error, leading to a memory leak and a Use-After-Free (UAF) condition. A Use-After-Free (UAF) is a memory corruption vulnerability that allows an attacker to potentially execute arbitrary code or cause a denial of service by manipulating freed memory. This issue could be exploited by a local attacker."], "name": "CVE-2026-53296", "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": "2026-06-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-53296\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-53296\nhttps://lore.kernel.org/linux-cve-announce/2026062618-CVE-2026-53296-fd81@gregkh/T"], "threat_severity": "Moderate"}

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