CVE-2026-33147: Generic-Mapping-Tools Gmt

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

GMT is an open source collection of command-line tools for manipulating geographic and Cartesian data sets. In versions from 6.6.0 and prior, a stack-based buffer overflow vulnerability was identified in the gmt_remote_dataset_id function within src/gmt_remote.c. This issue occurs when a specially crafted long string is passed as a dataset identifier (e.g., via the which module), leading to a crash or potential arbitrary code execution. This issue has been patched via commit 0ad2b49.

Affected products

• Generic-Mapping-Tools Gmt: up to and including 6.6.0

Published 2026-03-20. Last modified 2026-06-17.