CVE-2025-67268

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 v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/Jaenact/gspd_cve/blob/main/CVE-2025-67268/README.md	Exploit Third Party Advisory
https://github.com/ntpsec/gpsd/blob/master/drivers/driver_nmea2000.c	Product
https://github.com/ntpsec/gpsd/commit/dc966aa74c075d0a6535811d98628625cbfbe3f4	Patch
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

Configurations

Configuration 1 (hide)

cpe:2.3:a:gpsd_project:gpsd:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-01-02 16:17

Updated : 2026-07-15 02:17

NVD link : CVE-2025-67268

Mitre link : CVE-2025-67268

CVE.ORG link : CVE-2025-67268

JSON object : View

Products Affected

gpsd_project

gpsd

CWE

CWE-122

Heap-based Buffer Overflow

CWE-1285

Improper Validation of Specified Index, Position, or Offset in Input

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