CVE-2026-110603
mediumLASzip through 3.5.0 contains an invalid free vulnerability in laszip_read_header() that allows attackers to free uninitialized heap pointers via truncated var…
LASzip through 3.5.0 contains an invalid free vulnerability in laszip_read_header() that allows attackers to free uninitialized heap pointers via truncated variable length record data. Attackers can supply a crafted LAS/LAZ file with an inflated VLR count that, when opened and destroyed through the C API, crashes the process and corrupts the heap.
CVSS
6.3
6.3 (CVSS v3.1)
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)
Timeline (UTC)
Published: 2026-10-14 15:17
Modified: 2026-10-16 19:00
NVD status: Awaiting Analysis
Last synced 1 day ago
Verified against the source API 2026-10-27 07:02 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/LASzip/LASzip/blob/3.5.0/src/laszip_dll.cpp#L3967-L3995 disclosure@vulncheck.com
- https://github.com/LASzip/LASzip/blob/3.5.0/src/laszip_dll.cpp#L497-L511 disclosure@vulncheck.com
- https://github.com/LASzip/LASzip/commit/c9bfd3e68d65c84d513a2286ae06cbbe17afda02 disclosure@vulncheck.com
- https://hackmd.io/@haind-pwn/laszip-vlr-uninitialized-free disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/laszip-through-3.5.0-invalid-free-via-truncated-vlr-h... disclosure@vulncheck.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 07:02 UTC · record ↗