CVE-2026-12725
MEDIUM EPSS 32.4%
Published Jun 22, 20261w ago · Modified Jun 22, 20261w ago
5.9 CVSS 3.1
Published Jun 22, 2026 1w ago
Last Modified Jun 22, 2026 1w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
32.4% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-122
References 2
- access.redhat.com https://access.redhat.com/security/cve/CVE-2026-12725
- bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2490763
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.