{"cve":"CVE-2020-25829","nvd":{"published":"2020-10-16T06:15:12.357","modified":"2026-06-17T03:07:21.543","status":"Modified","description":"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_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":[],"references":["http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00036.html","https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-07.html","https://security.gentoo.org/glsa/202012-19","http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00036.html","https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-07.html"],"products":["opensuse:backports_sle","opensuse:leap","powerdns:recursor"],"source":"nvd","synced_at":"2026-10-19T21:09:53.489947993+00:00"},"epss":{"cve":"CVE-2020-25829","score":0.06543,"percentile":0.93806,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}