How severe is CVE-2026-33610?

CVE-2026-33610 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-33610 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-33610?

CVE-2026-33610 affects Powerdns Authoritative. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-33610?

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

Does CVE-2026-33610 have an EU (EUVD) identifier?

Yes. CVE-2026-33610 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-24949.

When was CVE-2026-33610 published?

CVE-2026-33610 was published on 2026-04-22 and last updated on 2026-06-17.

CVE-2026-33610

CVE-2026-33610 is a medium-severity vulnerability in Powerdns Authoritative with a CVSS 3.x base score of 5.9. 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-400.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
EPSS exploit prediction: 0% (31st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-24949
Weakness: CWE-400
Affected product: Powerdns Authoritative
Published: 2026-04-22
Last modified: 2026-06-17

Description

A rogue primary server may cause file descriptor exhaustion and eventually a denial of service, when a PowerDNS secondary server forwards a DNS update request to it.

Frequently asked questions

What is CVE-2026-33610?: A rogue primary server may cause file descriptor exhaustion and eventually a denial of service, when a PowerDNS secondary server forwards a DNS update request to it.
How severe is CVE-2026-33610?: CVE-2026-33610 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-33610 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33610?: CVE-2026-33610 affects Powerdns Authoritative. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-33610?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-33610 have an EU (EUVD) identifier?: Yes. CVE-2026-33610 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-24949.
When was CVE-2026-33610 published?: CVE-2026-33610 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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