CVE-2026-110603
MEDIUM
NVD
CVSS Score
6.3
Severity
MEDIUM
Published
Oct 14, 2026
Vendor
unknown
Description
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.
References
- https://github.com/LASzip/LASzip/blob/3.5.0/src/laszip_dll.cpp#L3967-L3995
- https://github.com/LASzip/LASzip/blob/3.5.0/src/laszip_dll.cpp#L497-L511
- https://github.com/LASzip/LASzip/commit/c9bfd3e68d65c84d513a2286ae06cbbe17afda02
- https://hackmd.io/@haind-pwn/laszip-vlr-uninitialized-free
- https://www.vulncheck.com/advisories/laszip-through-3.5.0-invalid-free-via-truncated-vlr-header-in-laszip-read-header