{"cve":"CVE-2026-63852","nvd":{"published":"2026-07-19T15:16:52.003","modified":"2026-10-19T20:19:24.530","status":"Undergoing Analysis","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/vcn: set no_user_fence for VCN v4.0.3 enc ring\n\nVCN encoder and decoder rings do not support 64-bit user fence writes,\nreject CS submissions with user fences.\n\n(cherry picked from commit ff1a5a125c5a70c328806b9bc01d7d942cf3f9aa)","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-20"],"references":["https://git.kernel.org/stable/c/0177ac6141c8857130cf365369c74dee7b6b1f7f","https://git.kernel.org/stable/c/387b7c7667bd5c53549350ddad866d2fcf75a529","https://git.kernel.org/stable/c/4532b52b34e4e4310386e6fdf6a643368599f522","https://git.kernel.org/stable/c/9076a83e5adefd10dc5c967c7b8bde601c4c512a","https://git.kernel.org/stable/c/c12a5d35033c0640c57c10d7111c010c7b9c2c8e"],"products":[],"source":"nvd","synced_at":"2026-10-21T03:43:09.190223697+00:00"},"epss":{"cve":"CVE-2026-63852","score":0.00175,"percentile":0.06966,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}