SEPTEMBER 8, 2026
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Case File

CVE-2026-63851

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, potentially allowing unauthorized access or manipulation of memory. This flaw could lead to denial of service or escalation of privileges, making it critical for organizations using affected Linux distributions to prioritize patching. System administrators and security teams should address this vulnerability promptly to mitigate risks associated with compromised system integrity.

CVE
CVE-2026-63851
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 v4.0.5 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 084d94ac93707bdda07efb5cee786f632de4219b)