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Fencer Vulns
critical 9.8

CVE-2025-67268 json

gpsd before commit dc966aa contains a heap-based out-of-bounds write vulnerability in the drivers/driver_nmea2000.c file.

published 2026-01-02 10 mo ago modified 2026-11-04 4 d ago also EUVD-2026-0661

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits
0
none known

Summary

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.

Patch / fix

  • Red Hat Red Hat Enterprise Linux 10 1:3.26.1-1.el10_1.1
  • Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support 1:3.25-17.el10_0.1
  • Red Hat Red Hat Enterprise Linux 9 1:3.26.1-1.el9_7.1
  • gpsd Debian 12 3.22-4.1+deb12u1
  • gpsd Debian 13 3.25-5+deb13u1
  • gpsd Debian 14 3.27.5-0.1

debian advisories DEBIAN-CVE-2025-67268

  • gpsd Ubuntu 22.04 LTS 3.22-4ubuntu2.1
  • gpsd Ubuntu 24.04 LTS 3.25-3ubuntu3.2
  • gpsd Ubuntu 25.10 3.25-5ubuntu1.25.10.1
  • gpsd Ubuntu 26.04 LTS 3.27-1.1ubuntu1

ubuntu advisories UBUNTU-CVE-2025-67268

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • gpsd RHEL 10.1 1:3.26.1-1.el10_1.1
  • gpsd-clients RHEL 10.1 1:3.26.1-1.el10_1.1
  • python3-gpsd RHEL 10.1 1:3.26.1-1.el10_1.1
  • gpsd-minimal RHEL 9 1:3.26.1-1.el9_7.1
  • gpsd-minimal-clients RHEL 9 1:3.26.1-1.el9_7.1
  • gpsd enterprise linux eus 10.0 1:3.25-17.el10_0.1
  • gpsd-clients enterprise linux eus 10.0 1:3.25-17.el10_0.1
  • python3-gpsd enterprise linux eus 10.0 1:3.25-17.el10_0.1

red hat advisories RHSA-2026:1621RHSA-2026:0770RHSA-2026:0771

  • gpsd openSUSE Tumbleweed 3.27.3-1.1

opensuse advisories openSUSE-SU-2026:10008-1

  • gpsd AlmaLinux 10 1:3.26.1-1.el10_1.1
  • gpsd-clients AlmaLinux 10 1:3.26.1-1.el10_1.1
  • python3-gpsd AlmaLinux 10 1:3.26.1-1.el10_1.1
  • gpsd-minimal AlmaLinux 9 1:3.26.1-1.el9_7.1
  • gpsd-minimal-clients AlmaLinux 9 1:3.26.1-1.el9_7.1

almalinux advisories ALSA-2026:0770ALSA-2026:0771

  • gpsd Rocky Linux 10 1:3.26.1-1.el10_1.1
  • gpsd-minimal Rocky Linux 9 1:3.26.1-1.el9_7.1

rocky linux advisories RLSA-2026:0770RLSA-2026:0771

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-67268 updated cvss 7.5

gpsd: gpsd: Arbitrary code execution via heap-based out-of-bounds write in NMEA2000 packet handling

  • Red Hat Enterprise Linux AppStream (v. 9) gpsd-minimal 3.26.1-1.el9_7.1, gpsd-minimal-clients 3.26.1-1.el9_7.1
    fixed: vendor fix RHSA-2026:0771
  • Red Hat Enterprise Linux AppStream (v. 10) gpsd 3.26.1-1.el10_1.1, gpsd-clients 3.26.1-1.el10_1.1, python3-gpsd 3.26.1-1.el10_1.1
    fixed: vendor fix RHSA-2026:0770
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0) gpsd 3.25-17.el10_0.1, gpsd-clients 3.25-17.el10_0.1, python3-gpsd 3.25-17.el10_0.1
    fixed: vendor fix RHSA-2026:1621

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
10 mo ago

Exploit prediction

0.79% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/Jaenact/gspd_cve/blob/main/CVE-2025-67268/README.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADP 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • Red Hat Red Hat Enterprise Linux 10
  • Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support
  • Red Hat Red Hat Enterprise Linux 9

Classification

Weakness
  • CWE-122 Heap-based Buffer Overflow
  • CWE-1285 Improper Validation of Specified Index, Position, or Offset in Input

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.