CVE-2026-52690
Spoofed answers can mark an authoritative non-EDNS capable
CVSS Score
5.9
EPSS Score
0.0%
EPSS Percentile
0th
Spoofing replies to Recursor might mark an IP of an authoritative server as not supporting EDNS, causing valdiation of DNSSEC records served by that server to fail.
| Vendor | powerdns |
| Product | recursor |
| Published | Jun 25, 2026 |
| Last Updated | Jun 25, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
PowerDNS / Recursor
5.2.0 < 5.2.11 5.3.0 < 5.3.8 5.4.0 < 5.4.3
References
Credits
Mehtab Zafar