CVE-2026-63849
Last modified
CVE-2026-63849 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 v5.0.1 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 e16be95a2c3ee712b142cb27d2dca0b461181359). EPSS estimates a 0.13% 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 v5.0.1 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 e16be95a2c3ee712b142cb27d2dca0b461181359)
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 | >= 346492f30ce3581bf5324c4ae417eab8537dc998, < 081ef0e46c9cdd26c0db0ef721470393d36b6655; >= 346492f30ce3581bf5324c4ae417eab8537dc998, < 5a4bffd67e94944ed3db26a959346cfb7fabaecd; >= 346492f30ce3581bf5324c4ae417eab8537dc998, < 8f4954722eab88e10c4ea0c0d3b1269c31421d3a |
| Linux | Linux | 6.14 |
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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