# CVE-2025-70102: dhcpcd: A NULL pointer dereference occurs in Roy Marples NetworkConfiguration/dhcpcd 10.3.0 while parsing configuration options

CVE-2025-70102 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2025-70102, released June 24, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-70102
- Priority: Routine
- CVSS: 6.3 (medium)
- EPSS: 0.0018
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 15, 2026

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | dhcpcd Debian 13.5 (trixie) | 1:10.1.0-11+deb13u3 | [DEBIAN-CVE-2025-70102](https://patchblox.com/security/data/fix/linux/debian-cve-2025-70102.md) | Jun 24, 2026 |
| Linux | dhcpcd Debian 14 | 1:10.3.1-1 | [DEBIAN-CVE-2025-70102](https://patchblox.com/security/data/fix/linux/debian-cve-2025-70102.md) | Jun 24, 2026 |
| Linux | dhcpcd opensuse-leap 16.0 | 10.3.2-160000.1.2 | [OPENSUSE-SU-2026:21220-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21220-1.md) | Jul 6, 2026 |
| Linux | dhcpcd sles 16.0 | 10.3.2-160000.1.2 | [SUSE-SU-2026:22561-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22561-1.md) | Jul 6, 2026 |
| Linux | dhcpcd5 Debian 12.15 (bookworm) | 9.4.1-24~deb12u5 | [DEBIAN-CVE-2025-70102](https://patchblox.com/security/data/fix/linux/debian-cve-2025-70102.md) | Jun 24, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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