CVE-2025-9820
medium
CVSS v3
4.0
CVSS v4 NEW
—
VIR risk
4.0
Description
RHSA-2026:5585: gnutls security update (Moderate)
Predictions
Exploit likelihood
40%
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 |
|---|---|---|---|
| rocky | 8 | fixed | |
| rhel | 9 | fixed | |
| debian | bookworm | fixed | 3.7.9-2+deb12u6 |
| debian | bullseye | fixed | 3.7.1-5+deb11u9 |
| debian | forky | fixed | 3.8.11-3 |
| debian | sid | fixed | 3.8.11-3 |
| debian | trixie | fixed | 3.8.9-3+deb13u1 |
| sles | affected | | |
| rocky | 9 | fixed | |
| almalinux | 9 | fixed | gnutls-c++-3.8.3-10.el9_7.aarch64.rpm |
| rhel | 8 | fixed | |
References
- https://errata.rockylinux.org/RLSA-2026:5585
- https://access.redhat.com/errata/RHSA-2026:4188
- https://access.redhat.com/errata/RHSA-2026:13812
- https://access.redhat.com/errata/RHSA-2026:3477
- https://access.redhat.com/errata/RHSA-2026:4655
- https://access.redhat.com/errata/RHSA-2026:4943
- https://access.redhat.com/errata/RHSA-2026:5585
- https://access.redhat.com/errata/RHSA-2026:5606
- https://access.redhat.com/errata/RHSA-2026:7329
- https://access.redhat.com/errata/RHSA-2026:7477
- https://access.redhat.com/security/cve/CVE-2025-9820
- https://bugzilla.redhat.com/show_bug.cgi?id=2392528
- https://gitlab.com/gnutls/gnutls/-/commit/1d56f96f6ab5034d677136b9d50b5a75dff0faf5
- https://gitlab.com/gnutls/gnutls/-/issues/1732
- https://www.gnutls.org/security-new.html#GNUTLS-SA-2025-11-18
- http://www.openwall.com/lists/oss-security/2025/11/20/2
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html
- https://security-tracker.debian.org/tracker/CVE-2025-9820
- https://www.suse.com/security/cve/CVE-2025-9820.html
- https://errata.rockylinux.org/RLSA-2026:4188
- https://bugzilla.redhat.com/2392528
- https://bugzilla.redhat.com/2423177
- https://errata.almalinux.org/8/ALSA-2026-5585.html
- https://errata.almalinux.org/9/ALSA-2026-4188.html
CWEs
CWE-121
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.