CVE-2026-110599
CVE-2026-110599 · L-SMASH through 2.14.5 Double Free in HEVC and H.264 Importer Probe
This page contains facts from public vulnerability sources. Check the original advisory before updating.
L-SMASH through 2.14.5 contains a double free vulnerability in hevc_setup_first_summary() and h264_setup_first_summary() in importer/nalu_imp.c that frees borrowed codec-specific objects on error paths. Attackers can supply a crafted Annex-B elementary stream lacking a parseable SPS to lsmash_read_file() or the boxdumper, remuxer, or muxer tools, causing use-after-free, heap corruption, and crashes.
CVSS 6.9 · Medium · EPSS 0.2%
- Published
- Updated
Affected products and versions
l-smash
- Versions
- ≥ 0, ≤ 2.14.5: Affected (semver)
No fix published
Original sources
- https://hackmd.io/@haind-pwn/l-smash-hevc-importer-double-free
- https://github.com/l-smash/l-smash/blob/v2.14.5/importer/nalu_imp.c#L1356-L1378
- https://github.com/l-smash/l-smash/blob/v2.14.5/importer/nalu_imp.c#L697-L715
- https://www.vulncheck.com/advisories/l-smash-through-2.14.5-double-free-in-hevc-and-h-264-importer-probe
- https://hackmd.io/@haind-pwn/cve-2016-20099-2026-110599-l-smash-hevc-importer-double-free
- https://nvd.nist.gov/vuln/detail/CVE-2026-110599