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Status published
Low
CVE-2023-26437
Deterred spoofing attempts can lead to authoritative servers being marked unavailable
Vulnerability Description
Denial of service vulnerability in PowerDNS Recursor allows authoritative servers to be marked unavailable.This issue affects Recursor: through 4.6.5, through 4.7.4 , through 4.8.3.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2023-02.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CN7VMRYKZHG2UDUAK326LXD3JY7NO3LR/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IHPD6SIQOG7245GXFQHPUEI4AZ6Y3KD6/
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Affected Vendor
PowerDNS
View all reports →Affected Software
Recursor
Vulnerable Versions:
0
Timeline
Official Publish:
April 4th, 2023
Last Modified:
February 13th, 2025
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:N/A:L
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.