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Fencer Vulns
high 7.5

CVE-2024-25583 json

Crafted responses can lead to a denial of service in Recursor if recursive forwarding is configured

published 2024-04-25 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-22911

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits
0
none known

Summary

A crafted response from an upstream server the recursor has been configured to forward-recurse to can cause a Denial of Service in the Recursor. The default configuration of the Recursor does not use recursive forwarding and is not affected.

Patch / fix

  • powerdns recursor 4.8.8, 4.9.5, 5.0.4
  • pdns-recursor Debian 12 4.8.8-1
  • pdns-recursor Debian 14, Debian 13 4.9.5-1

debian advisories DEBIAN-CVE-2024-25583

  • pdns-recursor openSUSE Tumbleweed 5.0.4-1.1
  • pdns-recursor Package Hub 15 SP5, openSUSE Leap 15.5 4.8.8-bp155.2.6.1

opensuse advisories openSUSE-SU-2024:13901-1openSUSE-SU-2024:0114-1

  • pdns-recursor Alpine 3.19 4.9.5-r0
  • pdns-recursor Alpine 3.24, Alpine 3.23, Alpine 3.22 +2 more 5.0.4-r0

alpine advisories ALPINE-CVE-2024-25583

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.83% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • PowerDNS Recursor
  • powerdns powerdns

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.