{"id":"CVE-2026-110599","state":"PUBLISHED","title":"L-SMASH through 2.14.5 Double Free in HEVC and H.264 Importer Probe","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.","publishedAt":"2026-10-14T14:16:41.692Z","updatedAt":"2026-10-14T16:16:31.026Z","severity":{"score":6.9,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["l-smash l-smash"],"affected":[{"vendor":"l-smash","product":"l-smash","packageURL":"pkg:github/l-smash/l-smash","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"2.14.5","versionType":"semver"}],"collectionURL":"https://github.com","repo":"https://github.com/l-smash/l-smash"}],"references":["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"],"weaknesses":["CWE-415"],"ingestedAt":"2026-10-29T20:10:33.477Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/110xxx/CVE-2026-110599.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-110599","state":"PUBLISHED","datePublished":"2026-10-14T14:16:41.692Z","dateUpdated":"2026-10-14T16:16:31.026Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-10-14T13:07:19.859Z"},"containers":{"cna":{"title":"L-SMASH through 2.14.5 Double Free in HEVC and H.264 Importer Probe","descriptions":[{"lang":"en","value":"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. 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