CVE-2026-49295

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.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/strukturag/libde265/commit/691f3a3c55b3d32478c4a49895dee061a282652b
https://github.com/strukturag/libde265/security/advisories/GHSA-g2rg-wj66-w594
https://github.com/strukturag/libde265/security/advisories/GHSA-g2rg-wj66-w594

Configurations

No configuration.

History

22 Jun 2026, 19:17

Type	Values Removed	Values Added
References	~~() https://github.com/strukturag/libde265/security/advisories/GHSA-g2rg-wj66-w594 -~~	() https://github.com/strukturag/libde265/security/advisories/GHSA-g2rg-wj66-w594 -

19 Jun 2026, 21:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-19 21:17

Updated : 2026-06-22 19:17

NVD link : CVE-2026-49295

Mitre link : CVE-2026-49295

CVE.ORG link : CVE-2026-49295

JSON object : View

Products Affected

No product.

CWE

CWE-787

Out-of-bounds Write

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