How severe is CVE-2025-67268?

CVE-2025-67268 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-67268 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-67268?

CVE-2025-67268 affects Gpsd Project Gpsd. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-67268?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-67268 have an EU (EUVD) identifier?

Yes. CVE-2025-67268 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-0661.

When was CVE-2025-67268 published?

CVE-2025-67268 was published on 2026-01-02 and last updated on 2026-06-30.

CVE-2025-67268

CVE-2025-67268 is a critical-severity vulnerability in Gpsd Project Gpsd with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-122.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-0661
Weakness: CWE-122
Affected product: Gpsd Project Gpsd
Published: 2026-01-02
Last modified: 2026-06-30

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.

Frequently asked questions

What is 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.
How severe is CVE-2025-67268?: CVE-2025-67268 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-67268 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-67268?: CVE-2025-67268 affects Gpsd Project Gpsd. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-67268?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-67268 have an EU (EUVD) identifier?: Yes. CVE-2025-67268 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-0661.
When was CVE-2025-67268 published?: CVE-2025-67268 was published on 2026-01-02 and last updated on 2026-06-30.

References

Affected products (1)

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

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