CVE-2025-30192

highpriority · track · 0OT risk · elevatedEPSS 0.003 · 20 %ileDEEURU

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.27% (20th) EPSS

CVSS 7.5 · high

Is it mine?

14 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-28

An attacker spoofing answers to ECS enabled requests sent out by the Recursor has a chance of success higher than non-ECS enabled queries. The updated version include various mitigations against spoofing attempts of ECS enabled queries by chaining ECS enabled requests and enforcing stricter validation of the received answers. The most strict mitigation done when the new setting outgoing.edns_subnet_harden (old style name edns-subnet-harden) is enabled.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · security@open-xchange.comexploitability 3.9 · impact 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-345USCWE-345US

affected products (14)

Products and version ranges known to be affected.

Open Source PowerDNS recursor <5.0.12all versionscert_bundDE
Open Source PowerDNS recursor <5.1.6all versionscert_bundDE
Open Source PowerDNS recursor <5.2.4all versionscert_bundDE
SUSE openSUSEall versionscert_bundDEcpe:/o:suse:opensuse:-
Open Source PowerDNS≤ recursor <5.0.12cert_bundDE
Open Source PowerDNS≤ recursor <5.1.6cert_bundDE
Open Source PowerDNS≤ recursor <5.2.4cert_bundDE
PowerDNS Recursor< 5.0.12enisa_euvdEU
PowerDNS Recursor< 5.1.6enisa_euvdEU
PowerDNS Recursor< 5.2.4enisa_euvdEU
PowerDNS.COM BV PowerDNS Recursor≤ 5.0.10fstec_bduRU
PowerDNS.COM BV PowerDNS Recursor4.1.0 → 5.1.4fstec_bduRU
PowerDNS.COM BV PowerDNS Recursor5.2.0 → 5.2.2fstec_bduRU
ООО «Ред Софт» РЕД ОС≤ 7.3fstec_bduRU

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2025-1614PowerDNS: Schwachstelle ermöglicht Denial of ServiceDeutsch2025-07-21csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in PowerDNS ausnutzen, um einen Denial of Service Angriff durchzuführen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2025-07-21modified 2026-06-17

references (5)

External citations — patches, advisories, analysis.

scry

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