CVE-2026-5172
HIGH7.3EPSS 0.02%Published: 5/11/2026Modified: 5/14/2026
Also known as:ALPINE-CVE-2026-5172
Description
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.
Affected packages (2)
- Alpine/dnsmasqfrom 0, < 2.91-r1
- Debian/dnsmasqfrom 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |