CVE-2026-49295 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-49295HIGH

strukturag libde265 — libde265 has an out-of-bounds write in process_reference_picture_set via predicted short-term RPS

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   R  U  N  L  H    7.1   .0023   13.8     —

AFFECTED
  Product   Versions    Fixed
  libde265  < 1.0.20 –  —

TIMELINE
  May 28  Reserved by GitHub_M
  Jun 19  EXPLOIT PUBLISHED — CVE-2026-49295 (strukturag libde265). Public exploit reference added.
  Jun 19  Published (CNA: GitHub_M)

CWE-787 · CNA: GitHub_M · CVSS v3.1 · 2 references · NVD status: Analyzed

Description

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
May 28, 2026	Reserved	Reserved by GitHub_M
June 19, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-49295 (strukturag libde265). Public exploit reference added.
June 19, 2026	Published	Published (CNA: GitHub_M)

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
strukturag	libde265	—	< 1.0.20	—

Weaknesses

CWE-787

References (2)

https://github.com/strukturag/libde265/commit/691f3a3c55b3d32478c4a49895dee061a282652b [Patch]
https://github.com/strukturag/libde265/security/advisories/GHSA-g2rg-wj66-w594 [Exploit, Mitigation, Vendor Advisory]

Authoritative record: CVE-2026-49295 at cve.org

Vendors: strukturag

Weaknesses: CWE-787

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-49295 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.