CVE-2025-40277
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-12-06

Last updated on: 2025-12-08

Assigner: kernel.org

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.
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Meta Information
Published
2025-12-06
Last Modified
2025-12-08
Generated
2026-06-16
AI Q&A
2025-12-07
EPSS Evaluated
2026-06-15
NVD
CVE-2025-40277
EUVD
EUVD-2025-201578
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *
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Exploitability
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability in the Linux kernel's drm/vmwgfx component involves improper validation of the command header size against a maximum allowed data size (SVGA_CMD_MAX_DATASIZE). Data coming from userspace is used in buffer offset calculations without proper checks, which could lead to an overflow and cause out-of-bounds memory access.

Impact Analysis

The vulnerability could allow an attacker to cause out-of-bounds memory access in the Linux kernel, potentially leading to system instability, crashes, or exploitation of kernel memory, which may compromise system security.

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