libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.20, a crafted H.265 bitstream can cause an out-of-bounds array write in `decoder_context::process_reference_picture_set()` (`libde265/decctx.cc:1376`). The root cause is a missing aggregate bound check on predicted short-term reference picture set entries. Individual list sizes are validated, but the combined count after predicted RPS construction can exceed the 16-entry `PocStFoll` array, writing at index 16. Version 1.0.20 patches the issue.
Fix
Patch, vendor advisory and mitigation references on NVD 3
- https://github.com/strukturag/libde265/commit/691f3a3c55b3d32478c4a49895dee061a282652b Patch
- https://github.com/strukturag/libde265/security/advisories/GHSA-g2rg-wj66-w594 Exploit, Mitigation, Vendor Advisory
- https://github.com/strukturag/libde265/security/advisories/GHSA-g2rg-wj66-w594 Exploit, Mitigation, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.1 · strukturNVD modified 2026-10-25 23:10
Affected (CPE criteria) 1
cpe:2.3:a:struktur:libde265:*:*:*:*:*:*:*:*
References 3
- https://github.com/strukturag/libde265/commit/691f3a3c55b3d32478c4a49895dee061a282652b Patch
- https://github.com/strukturag/libde265/security/advisories/GHSA-g2rg-wj66-w594 Exploit, Mitigation, Vendor Advisory
- https://github.com/strukturag/libde265/security/advisories/GHSA-g2rg-wj66-w594 Exploit, Mitigation, Vendor Advisory