DSA-6413-1 libde265 - security update

unknownCVE-2024-38949 CVE-2024-38950 CVE-2025-61147 CVE-2026-45382 CVE-2026-45383 CVE-2026-49295

Multiple security issues were discovered in libde265, an open source implementation of the H.265/HEVC video codec, which may result in denial of service, memory exhaustion or potentially the execution of arbitrary code if a malformed media file is processed. https://security-tracker.debian.org/tracker/DSA-6413-1

CSIRTS triage

vendor: libde265 product: libde265 Denial of service Memory corruption Remote code execution

What: Multiple vulnerabilities in libde265 H.265/HEVC codec implementation cause denial of service, memory exhaustion, or arbitrary code execution on malformed media files.
Who is affected: Systems processing H.265/HEVC video files with vulnerable libde265 library.
Urgency: High urgency if arbitrary code execution is confirmed; malicious media files can trigger vulnerabilities.
Action: Apply Debian DSA-6413-1 security update to libde265.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: Debian Security Advisories (INTL · vendor-psirt · site)
Severity: unknown
Published: 2026-08-06
Exploitation: Not in CISA KEV at last sync

Original advisory: https://lists.debian.org/debian-security-announce/2026/msg00324.html

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2024-389490.44% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 37% of all EPSS-scored CVEs.
Low exploitation riskCVE-2024-389500.45% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 38% of all EPSS-scored CVEs.
Low exploitation riskCVE-2025-611470.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-453820.43% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 36% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-453830.43% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 36% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-492950.34% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 27% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-493370.33% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 26% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-493460.34% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 27% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2024-38949	coverage & exploitation status	NVD · CVE.org
CVE-2024-38950	coverage & exploitation status	NVD · CVE.org
CVE-2025-61147	coverage & exploitation status	NVD · CVE.org
CVE-2026-45382	coverage & exploitation status	NVD · CVE.org
CVE-2026-45383	coverage & exploitation status	NVD · CVE.org
CVE-2026-49295	coverage & exploitation status	NVD · CVE.org
CVE-2026-49337	coverage & exploitation status	NVD · CVE.org
CVE-2026-49346	coverage & exploitation status	NVD · CVE.org
CVE-2026-54240	coverage & exploitation status	NVD · CVE.org
CVE-2026-54241	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.