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 H L N U H H H 7.0 .0072 50.9 —
AFFECTED Product Versions Fixed Linux Kernel 4.3.0 – 6.7.0
TIMELINE Dec 18 Reserved by Google Dec 19 Published (CNA: Google) Aug 17 RESCORED — CVE-2023-6931 (Linux Kernel). CVSS 7.8 → 7 (NVD).
A heap out-of-bounds write vulnerability in the Linux kernel's Performance Events system component can be exploited to achieve local privilege escalation. A perf_event's read_size can overflow, leading to an heap out-of-bounds increment or write in perf_read_group(). We recommend upgrading past commit 382c27f4ed28f803b1f1473ac2d8db0afc795a1b.
| Date | Event | Detail |
|---|---|---|
| December 18, 2023 | Reserved | Reserved by Google |
| December 19, 2023 | Published | Published (CNA: Google) |
| August 17, 2026 | RESCORED | RESCORED — CVE-2023-6931 (Linux Kernel). CVSS 7.8 → 7 (NVD). |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| Linux | Linux Kernel | — | 4.3.0 | 6.7.0 |
Authoritative record: CVE-2023-6931 at cve.org
Vendors: linux
Weaknesses: CWE-787
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2023-6931 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.