Cyber Resilience

CVE-2023-22617

HighDDoS

Published: 21 January 2023

Published
21 January 2023
Modified
03 April 2025
KEV Added
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Patch
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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0106 78.1th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-22617 is a high-severity Uncontrolled Recursion (CWE-674) vulnerability in Powerdns Recursor. Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 21.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

A remote attacker might be able to cause infinite recursion in PowerDNS Recursor 4.8.0 via a DNS query that retrieves DS records for a misconfigured domain, because QName minimization is used in QM fallback mode. This is fixed in 4.8.1.

CWE(s)
CWE-674

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

powerdns
recursor
4.8.0

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

CP-7 Alternate Processing Site
addresses: CWE-674

Supports resumption at alternate site when uncontrolled recursion causes primary site failure or crash.

SC-5 Denial-of-service Protection
addresses: CWE-674

Prevents uncontrolled recursion that exhausts stack or CPU resources.

References