How severe is CVE-2026-33147?

CVE-2026-33147 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability high.

Is CVE-2026-33147 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-33147?

CVE-2026-33147 affects Generic-mapping-tools Gmt. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-33147?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-33147 have an EU (EUVD) identifier?

Yes. CVE-2026-33147 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-13784.

When was CVE-2026-33147 published?

CVE-2026-33147 was published on 2026-03-20 and last updated on 2026-06-17.

CVE-2026-33147

CVE-2026-33147 is a high-severity vulnerability in Generic-mapping-tools Gmt with a CVSS 3.x base score of 7.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-121.

Key facts

Severity: High (CVSS 3.x base score 7.3)
EPSS exploit prediction: 0% (9th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-13784
Weakness: CWE-121
Affected product: Generic-mapping-tools Gmt
Published: 2026-03-20
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-33147?: 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.
How severe is CVE-2026-33147?: CVE-2026-33147 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability high.
Is CVE-2026-33147 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33147?: CVE-2026-33147 affects Generic-mapping-tools Gmt. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-33147?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-33147 have an EU (EUVD) identifier?: Yes. CVE-2026-33147 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-13784.
When was CVE-2026-33147 published?: CVE-2026-33147 was published on 2026-03-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:generic-mapping-tools:gmt:*:*:*:*:*:*:*:*

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