Is CVE-2026-12725 in the CISA KEV catalog?

No. CVE-2026-12725 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-12725?

CVE-2026-12725 has a CVSS v3 base score of 5.9 (Moderate).

What is the EPSS score for CVE-2026-12725?

CVE-2026-12725 has an EPSS score of 0.41% (32th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-12725?

Upgrade dnsmasq on debian unstable to 2.93-1 or later.

CVE & CISA-KEV Catalog

CVE-2026-12725

MEDIUM

5.9

CVSS v3

NVD

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.

CWE-122Heap-based Buffer Overflow

How to fix

Remediation Available

dnsmasqDebian

Fixed in:2.93-1CVE-2026-12725

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

0.41%probability of exploitation in 30 days

32ndpercentile

Low risk: more likely to be exploited than 32% of all known CVEs.

References

Other references2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-22.