Buffer Over-read in PowerDNS Recursor - CVE-2025-30195
Published: April 7, 2025
Vulnerability identifier: #VU107086
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-30195
CWE-ID: CWE-126
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to an error when processing and cashing specific Resource Record Sets. A remote attacker can publish a zone containing specially crafted Resource Record Sets, trigger illegal memory access and perform a denial of service (DoS) attack.
Affected software
PowerDNS Recursor
How to mitigate CVE-2025-30195
Install updates from vendor's website.
PowerDNS Recursor - update to 5.2.1