Description
gpsd before commit dc966aa contains a heap-based out-of-bounds write vulnerability in the drivers/driver_nmea2000.c file. The hnd_129540 function, which handles NMEA2000 PGN 129540 (GNSS Satellites in View) packets, fails to validate the user-supplied satellite count against the size of the skyview array (184 elements). This allows an attacker to write beyond the bounds of the array by providing a satellite count up to 255, leading to memory corruption, Denial of Service (DoS), and potentially arbitrary code execution.
References
- www.cve.org/CVERecord ↗
- nvd.nist.gov/vuln/detail/CVE-2025-67268 ↗
- github.com/Jaenact/gspd_cve/blob/main/CVE-2025-67268/README.md ↗
- github.com/ntpsec/gpsd/blob/master/drivers/driver_nmea2000.c ↗
- github.com/ntpsec/gpsd/commit/dc966aa74c075d0a6535811d98628625cbfbe3f4 ↗
- access.redhat.com/errata/RHSA-2026:0770 ↗
- access.redhat.com/errata/RHSA-2026:0771 ↗
- access.redhat.com/errata/RHSA-2026:1621 ↗
- access.redhat.com/security/cve/CVE-2025-67268 ↗
- bugzilla.redhat.com/show_bug.cgi ↗
- security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-67268.json ↗
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This product uses the NVD API but is not endorsed or certified by the NVD. CVSS scores do not establish exploitation.