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Vulnerabilities

Vulnerability · 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.

Published Apr 22, 2026 · catalog updated Jun 17, 2026 · A rogue primary server

Check if you run it

No confirmed exploitation is on record for CVE-2026-33610. EPSS is 0.73%. Act only if a listed version of A rogue primary server is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (A rogue primary server).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.73%
Remediation
Advisory link
Affected products
cpe powerdns/authoritative

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe powerdns/authoritativeversion unspecified

How to fix CVE-2026-33610

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-33610. EPSS is 0.73%. Act only if a listed version of A rogue primary server is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-400: Uncontrolled Resource Consumption. EPSS 0.73%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 22, 2026 · NIST NVD

    Detected

    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.

  2. Jun 17, 2026 · NIST NVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2026-33610

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-33610

    30-day exploitation probability 0.7%

    first.org
  • NIST NVDVulnerability recordCVE-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.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.