How severe is CVE-2026-33608?

CVE-2026-33608 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2026-33608 being actively exploited?

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

What products are affected by CVE-2026-33608?

CVE-2026-33608 affects Powerdns Authoritative. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-33608?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-33608 have an EU (EUVD) identifier?

Yes. CVE-2026-33608 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-24945.

When was CVE-2026-33608 published?

CVE-2026-33608 was published on 2026-04-22 and last updated on 2026-06-17.

CVE-2026-33608

CVE-2026-33608 is a high-severity vulnerability in Powerdns Authoritative with a CVSS 3.x base score of 7.4. 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-94.

Key facts

Severity: High (CVSS 3.x base score 7.4)
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-24945
Weakness: CWE-94
Affected product: Powerdns Authoritative
Published: 2026-04-22
Last modified: 2026-06-17

Description

An attacker can send a notify request that causes a new secondary domain to be added to the bind backend, but causes said backend to update its configuration to an invalid one, leading to the backend no longer able to run on the next restart, requiring manual operation to fix it.

Frequently asked questions

What is CVE-2026-33608?: An attacker can send a notify request that causes a new secondary domain to be added to the bind backend, but causes said backend to update its configuration to an invalid one, leading to the backend no longer able to run on the next restart, requiring manual operation to fix it.
How severe is CVE-2026-33608?: CVE-2026-33608 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2026-33608 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33608?: CVE-2026-33608 affects Powerdns Authoritative. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-33608?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-33608 have an EU (EUVD) identifier?: Yes. CVE-2026-33608 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-24945.
When was CVE-2026-33608 published?: CVE-2026-33608 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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