Is CVE-2026-42005 in the CISA KEV catalog?

No. CVE-2026-42005 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-42005?

CVE-2026-42005 has a CVSS v3 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2026-42005?

CVE-2026-42005 has an EPSS score of 0.48% (38th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-42005?

Upgrade dnsdist on debian 13 to 1.9.15-0+deb13u1 or later.

CVE & CISA-KEV Catalog

CVE-2026-42005

MEDIUM

4.3

CVSS v3

NVD

Description

An attacker can send a web request that causes unlimited memory allocation in the internal web server, leading to a denial of service. The internal web server is disabled by default.

CWE-400Resource Exhaustion

How to fix

Remediation Available

dnsdistDebian

Fixed in:1.9.15-0+deb13u1CVE-2026-42005

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 ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityLow

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

Exploit Intelligence

0.48%probability of exploitation in 30 days

38thpercentile

Low risk: more likely to be exploited than 38% of all known CVEs.

References

Other references1

docs.powerdns.com

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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 2026-06-25.