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Vulnerability record · CVE-2026-33147 · published 20 March 2026

CVE-2026-33147: Generic-mapping-tools gmt stack-based buffer overflow vulnerability

Generic Mapping Tools · Gmt

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.

7.8 CVSS 3.1 High EPSS 0.20% · top 91.1% CWE-121 · Stack-based buffer overflow
7.8CVSS 3.1 base score
0.20%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/GenericMappingTools/gmt/commit/0ad2b491470df82c9ec1139dcbd70502fa28a082 Patch
https://github.com/GenericMappingTools/gmt/security/advisories/GHSA-fqxx-62x7-9gwg ExploitVendor Advisory
https://github.com/GenericMappingTools/gmt/security/advisories/GHSA-fqxx-62x7-9gwg ExploitVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-33147), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.