CVE-2026-49295
libde265 has an out-of-bounds write in process_reference_picture_set via predicted short-term RPS
CVSS Score
7.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-787 |
| Vendor | strukturag |
| Product | libde265 |
| Published | Jun 19, 2026 |
| Last Updated | Jun 19, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
High
Affected Versions
strukturag / libde265
< 1.0.20