DSA-6413-1 libde265 - security update
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
- 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
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 36% 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 37% 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-2026-453820.25% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 17% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-453830.26% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 17% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-492950.23% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 14% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-493370.19% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 9% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-493460.23% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 14% 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.
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