High severity · published Apr 7, 2025
CVE-2025-30195
A crafted zone can lead to an illegal memory access in the PowerDNS Recursor
7.5
CVSS
0.8%
EPSS
No
On KEV
Description
An attacker can publish a zone containing specific Resource Record Sets. Processing and caching results for these sets can lead to an illegal memory accesses and crash of the Recursor, causing a denial of service.
The remedy is: upgrade to the patched 5.2.1 version.
We would like to thank Volodymyr Ilyin for bringing this issue to our attention.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 56% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RE
Recursor · PowerDNS
5.2.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-30195
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-30195
docs.powerdns.com
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2025-01.html
www.openwall.com
http://www.openwall.com/lists/oss-security/2025/04/07/1
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