CVE-2025-67268
gpsd before commit dc966aa contains a heap-based out-of-bounds write vulnerability in the drivers/driver_nmea2000.c file.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.77%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.77% probability · 54th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-122, CWE-1285
- Affected
- gpsd project/gpsd
- Source
- cve@mitre.org
References
- https://github.com/Jaenact/gspd_cve/blob/main/CVE-2025-67268/README.mdExploit, Third Party Advisory
- https://github.com/ntpsec/gpsd/blob/master/drivers/driver_nmea2000.cProduct
- https://github.com/ntpsec/gpsd/commit/dc966aa74c075d0a6535811d98628625cbfbe3f4Patch
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.