CVE-2026-110603: Access of Uninitialized Pointer in rapidlasso LASzip
Description
CVE-2026-110603 is a medium severity vulnerability in LASzip up to version 3.5.0. It involves an invalid free of an uninitialized heap pointer in the laszip_read_header() function. An attacker can craft a LAS/LAZ file with an inflated variable length record (VLR) count that triggers a crash and heap corruption when processed via the C API.
CVSS v4.0
Score 5.8medium
Affected software
rapidlasso
LASzip
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
LASzip versions up to and including 3.5.0 contain a vulnerability in the laszip_read_header() function where an invalid free operation occurs on an uninitialized heap pointer. This happens when a specially crafted LAS/LAZ file with an inflated VLR count is opened and then destroyed through the C API, causing the process to crash and corrupt the heap. The CVSS 4.0 base score is 5.8, indicating medium severity, with an attack vector of local access and requiring user interaction.
Potential Impact
Successful exploitation results in a process crash and heap corruption, which can lead to denial of service or potentially destabilize the application using LASzip. There is no indication of code execution or data disclosure. The attack requires local access and user interaction to open a malicious file.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid opening untrusted LAS/LAZ files with LASzip through the C API to prevent triggering the vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-10-14T13:07:21.217Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6acf92eb2cdf04f6568a3826
Added to database: 10/14/2026, 14:34:19 UTC
Last enriched: 10/14/2026, 15:18:34 UTC
Last updated: 10/14/2026, 19:00:33 UTC
Views: 9
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