CVE-2025-21887
high
CVSS v3
—
CVSS v4 NEW
—
VIR risk
8.0
Description
Important: kernel security update
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| rhel | 9 | fixed | |
| sles | affected | | |
| debian | bookworm | fixed | 6.1.133-1 |
| debian | bullseye | fixed | 5.10.247-1 |
| debian | forky | fixed | 6.12.19-1 |
| debian | sid | fixed | 6.12.19-1 |
| debian | trixie | fixed | 6.12.19-1 |
| almalinux | 9 | fixed | python3-perf-5.14.0-570.25.1.el9_6.aarch64.rpm |
| rocky | 9 | fixed | |
References
- https://access.redhat.com/errata/RHSA-2025:10379
- https://www.suse.com/security/cve/CVE-2025-21887.html
- https://security-tracker.debian.org/tracker/CVE-2025-21887
- https://bugzilla.redhat.com/2348596
- https://bugzilla.redhat.com/2355405
- https://bugzilla.redhat.com/2357142
- https://bugzilla.redhat.com/2363432
- https://bugzilla.redhat.com/2363876
- https://errata.almalinux.org/9/ALSA-2025-10379.html
- https://errata.rockylinux.org/RLSA-2025:10379
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.