cvedb.io
CVE-2026-49337
MEDIUM · CVSS 4.3
EPSS exploitation probability: 0%
Published 2026-06-19T21:17:01.720 · Last modified 2026-06-23T15:44:39.343

Summary

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 picture object that has no active image unit, resulting in attacker-controlled unbounded heap growth. The retained headers are never freed until the picture is released, which may not happen during continuous streaming. Version 1.0.20 patches the issue.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.