Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2026-110599
L-SMASH through 2.14.5 Double Free in HEVC and H.264 Importer Probe
AV AC AT PR UI VC VI VA CVSS EPSS %ile KEV
L L N N P N H H 6.9 .0024 14.5 —
AFFECTED
Product Versions Fixed
l-smash unspecified —
TIMELINE
Oct 14 EXPLOIT PUBLISHED — CVE-2026-110599 (l-smash). Public exploit reference added.
Oct 14 Reserved by VulnCheck
Oct 14 Published (CNA: VulnCheck)
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.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| October 14, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-110599 (l-smash). Public exploit reference added. |
| October 14, 2026 | Reserved | Reserved by VulnCheck |
| October 14, 2026 | Published | Published (CNA: VulnCheck) |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| l-smash | l-smash | — | — | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-110599 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.