Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV L L L N U N N H 5.5 .0015 4.8 —
AFFECTED Product Versions Fixed Linux 8ff590903d5fc7f5a0a988c38267a3d08e6393a2 – — Linux 2.6.38 – 5.10.260
TIMELINE Apr 16 Reserved by Linux Oct 4 Published (CNA: Linux) Jul 30 RESCORED — CVE-2025-39931 (Linux). CVSS 7.8 → 5.5 (NVD).
In the Linux kernel, the following vulnerability has been resolved: crypto: af_alg - Set merge to zero early in af_alg_sendmsg If an error causes af_alg_sendmsg to abort, ctx->merge may contain a garbage value from the previous loop. This may then trigger a crash on the next entry into af_alg_sendmsg when it attempts to do a merge that can't be done. Fix this by setting ctx->merge to zero near the start of the loop.
| Date | Event | Detail |
|---|---|---|
| April 16, 2025 | Reserved | Reserved by Linux |
| October 4, 2025 | Published | Published (CNA: Linux) |
| July 30, 2026 | RESCORED | RESCORED — CVE-2025-39931 (Linux). CVSS 7.8 → 5.5 (NVD). |
Authoritative record: CVE-2025-39931 at cve.org
Vendors: linux
Weaknesses: CWE-908
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2025-39931 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.