SEPTEMBER 8, 2026
Live Feed
Back to database
Case File

CVE-2026-63853

HIGH · CVSS 7.8 EPSS 0.12%

Source: NVD + CISA KEV + EPSS · Published 2026-07-19 · Last synced 2026-08-18

CyberRota Analysis

AI-Generated

The vulnerability affects the Linux kernel's VCN encoder and decoder rings, which improperly handle 64-bit user fence writes, leading to potential denial of service through rejected command submissions. This flaw poses a high risk, particularly for systems utilizing AMD graphics hardware that rely on the VCN functionality. Organizations using affected Linux distributions should prioritize applying patches to mitigate the risk of service disruptions.

CVE
CVE-2026-63853
Severity
HIGH
CVSS
7.8
EPSS
0.12%
Linux

Original NVD Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set no_user_fence for VCN v4.0 enc ring VCN encoder and decoder rings do not support 64-bit user fence writes, reject CS submissions with user fences. (cherry picked from commit fd852c048b46f9825e904a4f3f4538fe9d8827d9)