CVE-2025-67268
Critical · CVSS 9.8gpsd — heap-based out-of-bounds write (CWE-122) via improper index validation (CWE-1285)
- CVSS
- 9.8
- nvd
- EPSS
- —
- KEV
- No
- Class
- oss containerizable
- CWE-122, CWE-1285
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.
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Ranked PoCs (1) — best first
Heuristic ranking — not yet expert-vetted. Scored on structure + provenance, not execution.
- ★ 0
Recall-favoring discovery; ranking by the Stage-4 scorer (Adam's rubric). Scanner/aggregator repos are hidden.
References
- https://github.com/Jaenact/gspd_cve/blob/main/CVE-2025-67268/README.md
- https://github.com/ntpsec/gpsd/blob/master/drivers/driver_nmea2000.c
- https://github.com/ntpsec/gpsd/commit/dc966aa74c075d0a6535811d98628625cbfbe3f4
- https://access.redhat.com/errata/RHSA-2026:0770
- https://access.redhat.com/errata/RHSA-2026:0771
- https://access.redhat.com/errata/RHSA-2026:1621
- https://access.redhat.com/security/cve/CVE-2025-67268
- https://bugzilla.redhat.com/show_bug.cgi?id=2426835
- https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-67268.json
Status: enriched · ingested 2026-06-30T06:00:22.000Z · profiled 2026-06-30T18:30:14.000Z