CVE-2020-25829

mediumpriority · track · 32EPSS 0.065 · 94 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

6.54% (94th) EPSS

CVSS 5 · medium

Is it mine?

10 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

An issue has been found in PowerDNS Recursor before 4.1.18, 4.2.x before 4.2.5, and 4.3.x before 4.3.5. A remote attacker can cause the cached records for a given name to be updated to the Bogus DNSSEC validation state, instead of their actual DNSSEC Secure state, via a DNS ANY query. This results in a denial of service for installation that always validate (dnssec=validate), and for clients requesting validation when on-demand validation is enabled (dnssec=process).

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 · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 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)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-354USLLM-inferredCWE-400USLLM-inferred

affected products (10)

Products and version ranges known to be affected.

Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Gentoo Linuxall versionscert_bundDEcpe:/o:gentoo:linux:-
Open Source Arch Linuxall versionscert_bundDEcpe:/o:archlinux:archlinux:-
n/a n/a≤ n/aenisa_euvdEU
opensuse backports sle= 15.0nvdUScpe:2.3:a:opensuse:backports_sle:*:*:*:*:*:*:*:*
opensuse leap= 15.1nvdUScpe:2.3:o:opensuse:leap:*:*:*:*:*:*:*:*
opensuse leap= 15.2nvdUScpe:2.3:o:opensuse:leap:*:*:*:*:*:*:*:*
powerdns recursor< 4.1.18nvdUScpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*
powerdns recursor4.2.0 → 4.2.5nvdUScpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*
powerdns recursor4.3.0 → 4.3.5nvdUScpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-1478PowerDNS: Schwachstelle ermöglicht Denial of ServiceDeutsch2020-10-12csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in PowerDNS ausnutzen, um einen Denial of Service Angriff durchzuführen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd NVD CVE.org MITRE

published 2020-10-16modified 2026-06-17

references (13)

External citations — patches, advisories, analysis.

scry

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