7.5

CVE-2025-30195: powerdns recursor NULL Pointer Dereference

CVSS: 7.5v3.1HighDeferred
AliasesUBUNTU-CVE-2025-30195DEBIAN-CVE-2025-30195
Published 07-04-2025Last modified 07-04-2025
Open JSON

Vulnerability summary

CVE-2025-30195 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in powerdns recursor. EPSS estimates a 0.78% chance of exploitation in the next 30 days, higher than 55% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.78%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 07-04-2025
    PublishedVulnerability first disclosed.
  2. 07-04-2025
    Last modifiedVulnerability information updated.

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 metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.78%

Chance of exploitation in the next 30 days

Percentile

55%

Versus all other CVEs

30-day change

+0.01 pp

From 0.76% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.78%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • pdns-recursor< 5.2.1-1
Powerdns1 product
Ubuntu1 product
  • pdns-recursorAll versions (No fix recorded)

3 vendors · 3 products

References

6 links