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-2026-4892
- CVSS 3.1
- 8.4 high
- EPSS
- <1%p55
- Published
- ·
- Modified
Description · NVD
A heap-based out-of-bounds write vulnerability in the DHCPv6 implementation of dnsmasq allows local attackers to execute arbitrary code with root privileges via a crafted DHCPv6 packet.
- Weakness
- CWE-122
- Vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H