CVE-2025-12200 | dnsmasq up to 2.73rc6 Config File src/option.c parse_dhcp_opt m null pointer dereference (EUVD-2025-36059 / Nessus ID 276817)
A vulnerability, which was classified as problematic, has been found in dnsmasq up to 2.73rc6. Affected by this issue is the function parse_dhcp_opt of the file src/option.c of the component Config File Handler. This manipulation of the argument m causes null pointer dereference.
The identification of this vulnerability is CVE-2025-12200. The attack can only be executed locally. Furthermore, there is an exploit available.
The actual existence of this vulnerability is currently in question.
Based on the analysis by MITRE and review of community feedback, the reported conditions represent expected and intentional behavior within dnsmasq's documented design, rather than security vulnerabilities. The vendor was contacted early about this disclosure but did not respond in any way.