What is CVE-2026-49337?

CVE-2026-49337 is a medium-severity vulnerability in Strukturag Libde265, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 4.3/10. Published 2026-06-19.

How severe is CVE-2026-49337?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Resource exhaustion in Strukturag Libde265

CVE-2026-49337

libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.20, a crafted sequence of H.265 NAL units causes `decoder_context::read_slice_NAL()` (`libde265/decctx.cc:481`) to attach slice headers to a finished…

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.

Affected products

Strukturag Libde265 — versions < 1.0.20

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-49337?: CVE-2026-49337 is a medium-severity vulnerability in Strukturag Libde265, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 4.3/10. Published 2026-06-19.
How severe is CVE-2026-49337?: Medium severity. CVSS v3 base score is 4.3 out of 10.