CVE-2026-74444drm/vmwgfx: validate DRAW_PRIMITIVES header size before division
- 7.8HighCVSS base score
- 0.13%Exploitation in 30 daysEPSS · top 97% 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: drm/vmwgfx: validate DRAW_PRIMITIVES header size before division vmw_cmd_draw() computes maxnum = (header->size - sizeof(cmd->body)) / sizeof(*decl); where header->size is u32 and is taken straight from the user-supplied command stream. When header->size is less than sizeof(cmd->body) the unsigned subtraction wraps to nearly 4 GiB, producing a huge maxnum. Any user-controlled cmd->body.numVertexDecls then passes the bound and the loop dereferences decl[i] far past the end of the kernel command bounce buffer, producing an out-of-bounds read of kernel memory. Reject undersized headers up front.
Timeline
ID reserved
By Linux
Published
- 2 months later
· 2 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 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Received | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.13% · top 97% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 7a73ba7469cbea631050094fd14f73acebb97cf9 – < b89ca4bba820f79dde52af15ee139fe6e8bbc314
- affected 7a73ba7469cbea631050094fd14f73acebb97cf9 – < bef30317fcb4c838a37bceb2fc76256eb6b975c1
- affected 7a73ba7469cbea631050094fd14f73acebb97cf9 – < 112c6ff29a56f3a22db4d5af869697aa07035ad6
- affected 7a73ba7469cbea631050094fd14f73acebb97cf9 – < 2666cddf0dd218aa9bd1f99db688d1b532eac21a
- affected 7a73ba7469cbea631050094fd14f73acebb97cf9 – < fc0c02f510e41650df3479f96e257acf87d8a20a
- affected 7a73ba7469cbea631050094fd14f73acebb97cf9 – < dc0be7662b7b0ce28cb5eea864737793ed7b9e70
- affected 7a73ba7469cbea631050094fd14f73acebb97cf9 – < c77cf8edae2bd3a1599115301cc7c98d0c78e731
- affected 7a73ba7469cbea631050094fd14f73acebb97cf9 – < 85891d174707d8bddcec7a888fb4e1d17def34f3
- affected 2.6.33
- unaffected < 2.6.33
- unaffected 5.10.265 – ≤ 5.10.*
- unaffected 5.15.216 – ≤ 5.15.*
- unaffected 6.1.183 – ≤ 6.1.*
- unaffected 6.6.151 – ≤ 6.6.*
- unaffected 6.12.103 – ≤ 6.12.*
- unaffected 6.18.44 – ≤ 6.18.*
- unaffected 7.1.8 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References8
- https://git.kernel.org/stable/c/b89ca4bba820f79dde52af15ee139fe6e8bbc314 (opens in a new tab)
- https://git.kernel.org/stable/c/bef30317fcb4c838a37bceb2fc76256eb6b975c1 (opens in a new tab)
- https://git.kernel.org/stable/c/112c6ff29a56f3a22db4d5af869697aa07035ad6 (opens in a new tab)
- https://git.kernel.org/stable/c/2666cddf0dd218aa9bd1f99db688d1b532eac21a (opens in a new tab)
- https://git.kernel.org/stable/c/fc0c02f510e41650df3479f96e257acf87d8a20a (opens in a new tab)
- https://git.kernel.org/stable/c/dc0be7662b7b0ce28cb5eea864737793ed7b9e70 (opens in a new tab)
- https://git.kernel.org/stable/c/c77cf8edae2bd3a1599115301cc7c98d0c78e731 (opens in a new tab)
- https://git.kernel.org/stable/c/85891d174707d8bddcec7a888fb4e1d17def34f3 (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-2026-59751 (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-2026-74444)Record last updated .