Vulnerability in Linux

CVE-2025-40277

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.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (13.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 13.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-40277: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

  • Linux — versions 8ce75f8ab9044fe11caaaf2b2c82471023212f9f, 4.3, 0

References

Frequently asked questions

What is CVE-2025-40277?
CVE-2025-40277 is a high-severity vulnerability in Linux. CVSS score: 7.8/10. Published 2025-12-06.
How severe is CVE-2025-40277?
High severity. CVSS v3 base score is 7.8 out of 10.