PT-2026-26669 · Gmt · Gmt

Redyank · Published 2026-03-20 · Updated 2026-03-21 · CVE-2026-33147

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions GMT versions 6.6.0 and prior

Description GMT is an open source collection of command-line tools for manipulating geographic and Cartesian data sets. A stack-based buffer overflow exists in the gmt remote dataset id function within src/gmt remote.c. This occurs when a specially crafted long string is provided as a dataset identifier, potentially leading to a crash or arbitrary code execution. The issue is triggered when using the which module. This has been addressed with commit 0ad2b49.

Recommendations Versions prior to 6.6.0 should be updated to a newer version that includes commit 0ad2b49.

Exploit

Fix

Stack Overflow

Weakness Enumeration

CWE-121

Related Identifiers

CVE-2026-33147

GHSA-FQXX-62X7-9GWG

Affected Products

Gmt

References · 7

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33147.json · Exploit
• 🔥 https://github.com/GenericMappingTools/gmt/security/advisories/GHSA-fqxx-62x7-9gwg · Exploit
• https://github.com/GenericMappingTools/gmt/commit/0ad2b491470df82c9ec1139dcbd70502fa28a082 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-33147 · Security Note
• https://osv.dev/vulnerability/CVE-2026-33147 · Vendor Advisory
• https://twitter.com/infoflowcloud/status/2035262874436694021 · Twitter Post
• https://twitter.com/CVEnew/status/2035262158489931791 · Twitter Post