CVE-2024-25583

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

HIGH

7.5

CVSS Score

Published: April 25, 2024 at 09:45 AM UTC

Updated: June 17, 2026 at 07:16 AM UTC

3 products affected across 1 vendorAuthoritativeRecursorPowerdns

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Severity

HIGH7.5

Exploit prediction

EPSS 0.8%

SSVC

No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Authoritative · Powerdns

85%

All versions

60%

60%

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Source: [email protected]

http://www.openwall.com/lists/oss-security/2024/04/24/1

Source: [email protected]

https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-02.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHOX

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-20

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