CVE-2026-63854
Last modified
CVE-2026-63854 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set no_user_fence for VCN v3.0 enc/dec rings VCN encoder and decoder rings do not support 64-bit user fence writes, reject CS submissions with user fences. (cherry picked from commit 663bed3c7b8b9a7624b0d95d300ddae034ad0614). EPSS estimates a 0.12% chance of exploitation in the next 30 days.
Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set no_user_fence for VCN v3.0 enc/dec rings VCN encoder and decoder rings do not support 64-bit user fence writes, reject CS submissions with user fences. (cherry picked from commit 663bed3c7b8b9a7624b0d95d300ddae034ad0614)
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= cf14826cdfb5c9fe10f98210d040b9d7486c381d, < e74fc9c72c1ba78d0de0b849f5929c3b39a8e20c; >= cf14826cdfb5c9fe10f98210d040b9d7486c381d, < 26c4f38529ac78930c9c4713e16ebc5b689bb0a3; >= cf14826cdfb5c9fe10f98210d040b9d7486c381d, < 2d6525e7b2504f5bbfe9417cddc1e8da858791dd; >= cf14826cdfb5c9fe10f98210d040b9d7486c381d, < b076e45e6f757a2829e80d0144c1b5f201bee5af; >= cf14826cdfb5c9fe10f98210d040b9d7486c381d, < f1e5a6660d7cbf006079126d9babbf0ccf538c6b |
| Linux | Linux | 5.9 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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