CVE-2025-67268: gpsd · Heap-based Buffer Overflow
Affects gpsdSource CVE Database V5
Not known to be exploited · CVSS 9.8 Critical : upgrade to 10.0.1 as a priority.
Data as of 26 Oct 2026, 10:12 UTC
- EPSS
- 0.7% chance of exploitation in 30 days – higher than 56% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 10.0.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 2 Jan 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade ntpsec/gpsd to 10.0.1.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
GitHubntpsec/gpsdpkg:github/ntpsec/gpsdOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Red Hat has released official security updates for Red Hat Enterprise Linux 10.0 Extended Update Support that address this vulnerability. Users should apply these updates promptly to remediate the issue. For detailed update instructions, refer to Red Hat's advisory at https://access.redhat.com/articles/11258. Patch status is confirmed as fixed in these updates. No additional mitigation steps are indicated by the vendor.
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.
References
- github.com/ntpsec/gpsd/commit/dc966aa74c075d0a6535811d98628625cbfbe3f4 (opens in a new tab)
- github.com/ntpsec/gpsd/blob/master/drivers/driver_nmea2000.c (opens in a new tab)
- github.com/Jaenact/gspd_cve/blob/main/CVE-2025-67268/README.md (opens in a new tab)
- access.redhat.com/security/cve/CVE-2025-67268 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2426835 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-67268.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:1621 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:0770 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:0771 (opens in a new tab)