CVE-2026-4892

HIGH

dnsmasq < 2.92rel2 - Heap-Based Buffer Overflow via DHCPv6 Packet

Title source: llm
STIX 2.1

Description

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.

References (15)

Core 15
Core References

Scores

CVSS v3 8.4
EPSS 0.0081
EPSS Percentile 53.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-122
Status published
Products (3)
dnsmasq/dnsmasq < 2.92rel2
dnsmasq/dnsmasq 2.92rel2
dnsmasq/dnsmasq 2.93
Published May 11, 2026
Tracked Since May 11, 2026