CVE-2025-21785
high
CVSS v3
—
CVSS v4 NEW
—
VIR risk
8.0
Description
RHSA-2025:3264: kernel-rt security update (Important)
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 | |
| rocky | 8 | fixed | |
| sles | affected | | |
| debian | bookworm | fixed | 6.1.129-1 |
| debian | bullseye | fixed | 5.10.237-1 |
| debian | forky | fixed | 6.12.16-1 |
| debian | sid | fixed | 6.12.16-1 |
| debian | trixie | fixed | 6.12.16-1 |
| almalinux | 8 | fixed | kernel-rt-modules-extra-4.18.0-553.46.1.rt7.387.el8_10.x86_64.rpm |
| rhel | 8 | fixed | |
References
- https://access.redhat.com/errata/RHSA-2025:3208
- https://errata.rockylinux.org/RLSA-2025:3264
- https://errata.rockylinux.org/RLSA-2025:3260
- https://www.suse.com/security/cve/CVE-2025-21785.html
- https://security-tracker.debian.org/tracker/CVE-2025-21785
- https://access.redhat.com/errata/RHSA-2025:3260
- https://bugzilla.redhat.com/2348630
- https://errata.almalinux.org/8/ALSA-2025-3260.html
- https://access.redhat.com/errata/RHSA-2025:3264
- https://errata.almalinux.org/8/ALSA-2025-3264.html
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.