Six new dnsmasq vulnerabilities open the door to DNS cache poisoning, local root
Six dnsmasq flaws enable DNS cache poisoning, DoS, memory leaks, and local root code execution; fixes ship in version 2.92rel2.
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CVE-2026-5172
- CVSS 3.1
- 7.3 high
- EPSS
- 3%p85
- Published
- ·
- Modified
Description · NVD
A buffer overflow in dnsmasq’s extract_addresses() function allows an attacker to trigger a heap out-of-bounds read and crash by exploiting a malformed DNS response, enabling extract_name() to advance the pointer past the record’s end.
- Weakness
- CWE-125
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L