CVE record · CVE-2026-98258

posix-cpu-timers: Prevent freeing a timer which is queued on the expiry list

CVSS 7.8 HighEPSS 0.0019 · 8th percentile

Published by the CVE Program (CNA: Linux) at 6 Oct 2026, 08:45 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Linux	Linux	affected bf635681c906ad056d1fda325de8d1c12c9f8201 to before 9971dac1a77845ff467146915fcbb9170f6a8209 git affected bf635681c906ad056d1fda325de8d1c12c9f8201 to before 4336e3f47d9d516441066e9a65eaf076790d8d45 git affected bf635681c906ad056d1fda325de8d1c12c9f8201 to before c21eaa72f02fc6e85621cbe09d303d8fb8bd39cd git Other versions: unaffected
Linux	Linux	affected 6.13 unaffected before 6.13 semver unaffected 6.18.54 to 6.18., inclusive semver unaffected 7.2.8 to 7.2., inclusive semver unaffected 7.3 to *, inclusive original_commit_for_fix Other versions: affected

Identifiers: CVE-2026-98258
CNA: Linux
Tags: Linux kernel
Published: 6 Oct 2026
Updated: 19 Oct 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
7.8	High	3.1	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	CNA (Linux)

CISA KEV Not listed.
EPSS 0.0019, the 8th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 6 Oct 2026. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.