CVE-2026-29974

High

Published: 08 May 2026

Published

08 May 2026

Modified

12 May 2026

KEV Added

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Patch

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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Score 0.0006 18.2th percentile

Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-29974 is a high-severity Stack-based Buffer Overflow (CWE-121) vulnerability. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 18.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2026-28786

Vulnerability details

An issue was discovered in kosma minmea 0.3.0. The minmea_scan functions format specifier copies NMEA field data to a caller-provided buffer without a size parameter. Applications using minmea_scan on untrusted input are vulnerable to a stack buffer overflow.

CWE(s): CWE-121

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

T1203 Exploitation for Client Execution Execution

Adversaries may exploit software vulnerabilities in client applications to execute code.

attack.mitre.org →

T1068 Exploitation for Privilege Escalation Privilege Escalation

Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.

attack.mitre.org →

Why these techniques?

Stack buffer overflow on untrusted NMEA input directly enables remote code execution via public apps (T1190), client-side exploitation (T1203), or privilege escalation (T1068).

Confidence: MEDIUM · MITRE ATT&CK Enterprise v18.1