Medium severity · published Dec 9, 2025
CVE-2025-59029
An attacker can trigger an assertion failure by requesting crafted DNS records, waiting for them to be inserted into the records cache, then send a query with qtype set to ANY
5.3
CVSS
0.4%
EPSS
No
On KEV
Description
An attacker can trigger an assertion failure by requesting crafted DNS records, waiting for them to be inserted into the records cache, then send a query with qtype set to ANY.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 31% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RE
Recursor · Powerdns
5.3.0; 5.3.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-59029
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-59029
Vendor Advisory
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2025-07.html
More from Recursor
9.8
CVE-2019-3807
An issue has been found in PowerDNS Recursor versions 4.1.x before 4.1.9 where records in the answer section of responses received from authoritative servers with the AA flag not…
8.8
CVE-2020-10030
An issue has been found in PowerDNS Recursor 4.1.0 up to and including 4.3.0
8.2
CVE-2025-59023
Crafted delegations or IP fragments can poison cached delegations in Recursor
8.1
CVE-2019-3806
An issue has been found in PowerDNS Recursor versions after 4.1.3 before 4.1.9 where Lua hooks are not properly applied to queries received over TCP in some specific combination…
7.5
CVE-2026-52688
RRSIGs with too few labels can lead to bypass of DNSSEC wildcard validation