CVE-2026-110599
HIGH
CVSS 7.1
Published: 2026-10-14
Modified: 2026-10-15
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Description
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.
Quick Facts
| CVE ID | CVE-2026-110599 |
| CVSS Score | 7.1 |
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H |
| Published | 2026-10-14 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |
References
- https://github.com/l-smash/l-smash/blob/v2.14.5/importer/nal…
- https://github.com/l-smash/l-smash/blob/v2.14.5/importer/nal…
- https://hackmd.io/@haind-pwn/l-smash-hevc-importer-double-fr…
- https://www.vulncheck.com/advisories/l-smash-through-2.14.5-…
- https://hackmd.io/@haind-pwn/cve-2016-20099-2026-110599-l-sm…