CVE-2026-110599
L-SMASH through 2.14.5 contains a double free vulnerability in hevc_setup_first_summary() and…
- Risk score
- 46/100
- CVSS
- 7.1 v3.1
- Exploit chance (30 days)
- 0.2%
- Published
- 14 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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 boxdum…
- Affected
- See advisory
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 7.1 high
References
- 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://hackmd.io/@haind-pwn/l-smash-hevc-importer-double-free
- 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
Original 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.
Last activity 14 Oct 2026. Patch Forecast updates every hour.