CVE-2025-67268
gpsd Heap-Based Out-of-Bounds Write Vulnerability
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.
INFO
Published Date :
Jan. 2, 2026, 4:17 p.m.
Last Modified :
Jan. 12, 2026, 3:33 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Update gpsd to a version after commit dc966aa.
- Validate user-supplied satellite counts.
- Ensure skyview array size is respected.
Public PoC/Exploit Available at Github
CVE-2025-67268 has a 3 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-67268.
| URL | 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 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-67268 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-67268
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
A simple Python script that fetches and displays the latest CVEs from the (Shodan CVE Database) in a clean and readable format.
Python
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Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-67268 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-67268 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Jan. 12, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:gpsd_project:gpsd:*:*:*:*:*:*:*:* versions up to (excluding) 3.27.1 Added Reference Type MITRE: https://github.com/Jaenact/gspd_cve/blob/main/CVE-2025-67268/README.md Types: Exploit, Third Party Advisory Added Reference Type MITRE: https://github.com/ntpsec/gpsd/blob/master/drivers/driver_nmea2000.c Types: Product Added Reference Type MITRE: https://github.com/ntpsec/gpsd/commit/dc966aa74c075d0a6535811d98628625cbfbe3f4 Types: Patch -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jan. 06, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-122 -
New CVE Received by [email protected]
Jan. 02, 2026
Action Type Old Value New Value Added 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. Added Reference https://github.com/Jaenact/gspd_cve/blob/main/CVE-2025-67268/README.md Added Reference https://github.com/ntpsec/gpsd/blob/master/drivers/driver_nmea2000.c Added Reference https://github.com/ntpsec/gpsd/commit/dc966aa74c075d0a6535811d98628625cbfbe3f4