CVE-2026-110603
LASzip through 3.5.0 Invalid Free via Truncated VLR Header in laszip_read_header
CVSS Score
6.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-824 |
| Vendor | rapidlasso |
| Product | laszip |
| Published | Oct 14, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
High
Affected Versions
rapidlasso / LASzip
0 ≤ 3.5.0
References
github.com: https://github.com/LASzip/LASzip/commit/c9bfd3e68d65c84d513a2286ae06cbbe17afda02 github.com: https://github.com/LASzip/LASzip/blob/3.5.0/src/laszip_dll.cpp#L3967-L3995 github.com: https://github.com/LASzip/LASzip/blob/3.5.0/src/laszip_dll.cpp#L497-L511 hackmd.io: https://hackmd.io/@haind-pwn/laszip-vlr-uninitialized-free vulncheck.com: https://www.vulncheck.com/advisories/laszip-through-3.5.0-invalid-free-via-truncated-vlr-header-in-laszip-read-header
Credits
HaiND from the Post and Telecommunication Institute of Technology