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Fencer Vulns
medium 6.3

CVE-2025-70102 json

A NULL pointer dereference occurs in Roy Marples NetworkConfiguration/dhcpcd 10.3.0 while parsing configuration options.

published 2026-06-15 4 mo ago modified 2026-10-30 9 d ago also EUVD-2025-210156

cvss
6.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 7%
public exploits
0
none known

Summary

A NULL pointer dereference occurs in Roy Marples NetworkConfiguration/dhcpcd 10.3.0 while parsing configuration options. In parse_option() (src/if-options.c:1886), the code performs a member access on a NULL pointer of type 'struct dhcp_opt' when an unexpected/invalid option token or parsing state causes the lookup to yield NULL. The instrumented fuzzing build reports 'runtime error: member access within null pointer of type struct dhcp_opt' and aborts.

Patch / fix

  • dhcpcd Debian 13 1:10.1.0-11+deb13u3
  • dhcpcd Debian 14 1:10.3.1-1
  • dhcpcd5 Debian 12 9.4.1-24~deb12u5

debian advisories DEBIAN-CVE-2025-70102

  • dhcpcd SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 10.3.2-160000.1.2

suse advisories SUSE-SU-2026:22542-1SUSE-SU-2026:22561-1

  • dhcpcd openSUSE Leap 16.0 10.3.2-160000.1.2

opensuse advisories openSUSE-SU-2026:21220-1

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-2025-70102 updated cvss 4.4

dhcpcd: dhcpcd: Denial of Service via NULL pointer dereference during configuration option parsing

  • Red Hat Enterprise Linux 10 dhcpcd
    affected: workaround, no fix available “Red Hat is not aware of a practical temporary workaround that fully mitigates this issue or meets Red Hat Product Security's standards for usability, deployment, applicability, or stability.”

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
no
Technical impact
partial
Assessed
4 mo ago

Exploit prediction

0.18% chance of exploitation in the next 30 days, higher than 7% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 6.3 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CNA 3.1 6.3 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Classification

Weakness

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.