CVE-2023-22617

HIGH 7.5CVE-2023-22617 · Published 21/01/2023 · updated 17/06/2026

In short

CVE-2023-22617 is a HIGH (CVSS 7.5) vulnerability affecting recursor (powerdns).
Chance of exploitation in the next 30 days (EPSS): 7.5%, higher than 94.5% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
recursor powerdns	`= 4.8.0`	No fix yet

Description

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.

References

openwall.com/lists/oss-security/2023/01/20/1 · Mailing List
docs.powerdns.com/recursor/changelog/4.8.html · Release Notes
docs.powerdns.com/recursor/security-advisories · Vendor Advisory

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Package

Affected versions

Patched versions

recursor

powerdns

= 4.8.0

No fix yet

More vulnerabilities in recursor

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