CVE-2026-4892
High
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.
SeverityHigh
CVSS8.4
Exploit probability—
ProductDnsmasq
PublishedMay 11, 2026
First seenMay 11, 2026
Weakness typeCWE-122CWE-122
How to fix
Update
- dnsmasq dnsmasq2.92rel2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| dnsmasq dnsmasq | v < 2.92rel2 | 2.92rel2 |
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