Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2025-12-08. the CNA's CVSS baseline 7.1; sources differ by 0.0.
A fix is available — apply it.
In the Linux kernel, the following vulnerability has been resolved:
fbdev: bitblit: bound-check glyph index in bit_putcs*
bit_putcs_aligned()/unaligned() derived the glyph pointer from the character value masked by 0xff/0x1ff, which may exceed the actual font's glyph count and read past the end of the built-in font array. Clamp the index to the actual glyph count before computing the address.
This fixes a global out-of-bounds read reported by syzbot.
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
December 8, 2025
August 5, 2026
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Red Hat Security Advisory: kernel security update
Red Hat Security Advisory: kernel security update
Red Hat Security Advisory: kernel security update
Red Hat Security Advisory: kernel security update
Red Hat Security Advisory: kernel security update
Red Hat Security Advisory: kernel-rt security update
Red Hat Security Advisory: kernel-rt security update
Red Hat Security Advisory: kernel security update
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| linux | 5.10.103-1 ... 5.10.92-2 (47 versions) | 5.10.247-1 | — |
| linux-6.1 | 6.1.106-3~deb11u1 ... 6.1.158-1~deb11u1 (13 versions) | 6.1.159-1~deb11u1 | — |
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| linux | 6.1.106-1 ... 6.1.99-1 (45 versions) | 6.1.159-1 | — |
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| linux | 6.12.38-1 ... 6.12.63-1~bpo12+1 (8 versions) | 6.12.63-1 | — |
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| linux | 6.12.100-1 ... 6.17.8-1~bpo13+1 (79 versions) | 6.17.8-1 | — |
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
fbdev: bitblit: bound-check glyph index in bit_putcs*
RHSA-2026:1727 — Moderate
Linux kernel vulnerabilities
Linux kernel vulnerabilities
Linux kernel (Azure) vulnerabilities
Linux kernel (GCP) vulnerabilities
Linux kernel (OEM) vulnerabilities
Linux kernel vulnerabilities
Linux kernel (FIPS) vulnerabilities
Linux kernel (Real-time) vulnerabilities
Linux kernel (AWS) vulnerabilities
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 183 total refreshes for this CVE.
See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-40322
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