How severe is CVE-2026-33611?

CVE-2026-33611 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2026-33611 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-33611?

CVE-2026-33611 affects Powerdns Authoritative. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-33611?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-33611 have an EU (EUVD) identifier?

Yes. CVE-2026-33611 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-24951.

When was CVE-2026-33611 published?

CVE-2026-33611 was published on 2026-04-22 and last updated on 2026-06-17.

CVE-2026-33611

CVE-2026-33611 is a medium-severity vulnerability in Powerdns Authoritative with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-190.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-24951
Weakness: CWE-190
Affected product: Powerdns Authoritative
Published: 2026-04-22
Last modified: 2026-06-17

Description

An operator allowed to use the REST API can cause the Authoritative server to produce invalid HTTPS or SVCB record data, which can in turn cause LMDB database corruption, if using the LMDB backend.

Frequently asked questions

What is CVE-2026-33611?: An operator allowed to use the REST API can cause the Authoritative server to produce invalid HTTPS or SVCB record data, which can in turn cause LMDB database corruption, if using the LMDB backend.
How severe is CVE-2026-33611?: CVE-2026-33611 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2026-33611 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33611?: CVE-2026-33611 affects Powerdns Authoritative. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-33611?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-33611 have an EU (EUVD) identifier?: Yes. CVE-2026-33611 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-24951.
When was CVE-2026-33611 published?: CVE-2026-33611 was published on 2026-04-22 and last updated on 2026-06-17.

References

https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-powerdns-2026-05.html

Affected products (1)

cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:*

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