- 7.1HighCVSS base score
- 0.15%Exploitation in 30 daysEPSS · top 95% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
- 8 months later
· 8 months later
Published
- 8 months later
· 8 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
| NVDNVD · Deferred | 3.1 | High7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.15% · top 95% of all CVEs (11 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.
Affected products
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < a10cede006f9614b465cf25609a8753efbfd45cc
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 0998a6cb232674408a03e8561dc15aa266b2f53b
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < db5c9a162d2f42bcc842b76b3d935dcc050a0eec
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < c12003bf91fdff381c55ef54fef3e961a5af2545
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 9ba1a7802ca9a2590cef95b253e6526f4364477f
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 901f44227072be60812fe8083e83e1533c04eed1
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < efaf89a75a29b2d179bf4fe63ca62852e93ad620
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 18c4ef4e765a798b47980555ed665d78b71aeadf
- affected 2.6.12
- unaffected < 2.6.12
- unaffected 5.4.302 – ≤ 5.4.*
- unaffected 5.10.247 – ≤ 5.10.*
- unaffected 5.15.197 – ≤ 5.15.*
- unaffected 6.1.159 – ≤ 6.1.*
- unaffected 6.6.117 – ≤ 6.6.*
- unaffected 6.12.58 – ≤ 6.12.*
- unaffected 6.17.8 – ≤ 6.17.*
- unaffected 6.18 – ≤ *
References
References8
- https://git.kernel.org/stable/c/a10cede006f9614b465cf25609a8753efbfd45cc (opens in a new tab)
- https://git.kernel.org/stable/c/0998a6cb232674408a03e8561dc15aa266b2f53b (opens in a new tab)
- https://git.kernel.org/stable/c/db5c9a162d2f42bcc842b76b3d935dcc050a0eec (opens in a new tab)
- https://git.kernel.org/stable/c/c12003bf91fdff381c55ef54fef3e961a5af2545 (opens in a new tab)
- https://git.kernel.org/stable/c/9ba1a7802ca9a2590cef95b253e6526f4364477f (opens in a new tab)
- https://git.kernel.org/stable/c/901f44227072be60812fe8083e83e1533c04eed1 (opens in a new tab)
- https://git.kernel.org/stable/c/efaf89a75a29b2d179bf4fe63ca62852e93ad620 (opens in a new tab)
- https://git.kernel.org/stable/c/18c4ef4e765a798b47980555ed665d78b71aeadf (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-201623 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-40322)Record last updated .