CVE-2026-12725
MEDIUM
MEDIUM
Priority: 0.03
BB Relevance:
62/100
Published: 2026-06-22
Modified: 2026-11-05
First seen: 2026-11-05
Status: active
Attack Surface
Network
No Auth
No Interaction
CVSS Vector Breakdown
AV:
Network
AC:
High
PR:
None
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
Description
A heap-based buffer overflow was found in dnsmasq. When DNSSEC validation and query logging are both enabled, logging of DS or DNSKEY replies containing unsupported algorithm or digest types can cause dnsmasq to write past the end of an internal logging buffer. A remote attacker able to supply such a DNS response may crash the dnsmasq process, resulting in denial of service.
Weakness Classification (1)
Affected Software (5)
| Vendor | Product | Version |
|---|---|---|
| redhat | enterprise_linux | 8.0 |
| redhat | enterprise_linux | 9.0 |
| redhat | enterprise_linux | 10.0 |
| redhat | openshift_container_platform | 4.0 – 4.22.1 |
| thekelleys | dnsmasq | < 2.93 |
References & Advisories (2)
Mitigation
Vendor Advisory
Issue Tracking
Vendor Advisory