7.8

CVE-2025-40277: drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE

Deferred
AliasesUBUNTU-CVE-2025-40277DEBIAN-CVE-2025-40277
Published 06-12-2025Last modified 05-08-2026

Vulnerability summary

CVE-2025-40277 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.8% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.24%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 64 · Related 45
DLA-4404-1DLA-4436-1MGASA-2026-0017MGASA-2026-0018OPENSUSE-SU-2026:20145-1RHSA-2026:0453

Timeline

  1. 06-12-2025
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE This data originates from userspace and is used in buffer offset calculations which could potentially overflow causing an out-of-bounds access.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

15%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.24% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu153 products
  • linuxAll versions (No fix recorded) | < 5.15.0-173.183 | < 6.8.0-106.106 | < 6.17.0-14.14
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1103.110 | < 6.8.0-1050.53 | < 6.17.0-1007.7
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.159-1 | < 6.12.63-1 | < 6.17.9-1
Linux1 product
  • linux≥ 8ce75f8ab9044fe11caaaf2b2c82471023212f9f, < e58559845021c3bad5e094219378b869157fad53 | ≥ 8ce75f8ab9044fe11caaaf2b2c82471023212f9f, < 54d458b244893e47bda52ec3943fdfbc8d7d068b | ≥ 8ce75f8ab9044fe11caaaf2b2c82471023212f9f, < 709e5c088f9c99a5cf2c1d1c6ce58f2cca7ab173 | ≥ 8ce75f8ab9044fe11caaaf2b2c82471023212f9f, < a3abb54c27b2c393c44362399777ad2f6e1ff17e | ≥ 8ce75f8ab9044fe11caaaf2b2c82471023212f9f, < b5df9e06eed3df6a4f5c6f8453013b0cabb927b4 | ≥ 8ce75f8ab9044fe11caaaf2b2c82471023212f9f, < 5aea2cde03d4247cdcf53f9ab7d0747c9dca1cfc | ≥ 8ce75f8ab9044fe11caaaf2b2c82471023212f9f, < f3f3a8eb3f0ba799fae057091d8c67cca12d6fa0 | ≥ 8ce75f8ab9044fe11caaaf2b2c82471023212f9f, < 32b415a9dc2c212e809b7ebc2b14bc3fbda2b9af | 4.3

3 vendors · 155 products

References

38 links
Show all 38 references