CVE-2026-80663

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{"bugzilla": {"description": "kernel: tools/power/x86/intel-speed-select: Harden daemon pidfile open", "id": "2525492", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2525492"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-59", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ntools/power/x86/intel-speed-select: Harden daemon pidfile open\nAvoid symlink-based pidfile clobbering by opening the pidfile with\nO_NOFOLLOW and validating it with fstat() before locking/writing.\nThe daemon currently uses a fixed pidfile path under /tmp. A local\nunprivileged user can pre-create a symlink at that path and cause a\nroot-run daemon instance to write into an attacker-chosen file.", "A flaw was found in the Linux kernel's Intel Speed Select daemon. A local unprivileged user can exploit a symlink vulnerability in the daemon's pidfile handling. By pre-creating a symbolic link at the fixed pidfile path under /tmp, the attacker can cause the root-run daemon instance to write into an attacker-chosen file. This could lead to arbitrary file write, potentially enabling privilege escalation or denial of service."], "name": "CVE-2026-80663", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-28T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-80663\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-80663\nhttps://lore.kernel.org/linux-cve-announce/2026082846-CVE-2026-80663-bdef@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7fd786dfbd2c55ddee3b87f33c82f1c58bdb1dd6,905493a6338c82a70da16f86e0a6215db5a3d73d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7fd786dfbd2c55ddee3b87f33c82f1c58bdb1dd6,db938eb9a3c1317596c28e94413b33426508d51b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7fd786dfbd2c55ddee3b87f33c82f1c58bdb1dd6,72a07abc6b9046f07a08bba353cad7667bcc9dce)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7fd786dfbd2c55ddee3b87f33c82f1c58bdb1dd6,19ffeb30fdfce63f8d6aca71bcdddb3f69d46278)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7fd786dfbd2c55ddee3b87f33c82f1c58bdb1dd6,e8adac69d1bdf035ef97cc914e845acd4ef08e28)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7fd786dfbd2c55ddee3b87f33c82f1c58bdb1dd6,607af438e6430893a822964c841a1994b33acccc)"}}], "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": "5.18"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.18)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.178,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.145,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.97,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.40,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.5,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2,*]"}}], "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"}], "created": "2026-08-28T11:00:11.890684+00:00", "updated": "2026-09-01T17:30:17.396565+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}