{"cve":"CVE-2022-33991","nvd":{"published":"2022-08-15T13:15:19.047","modified":"2026-06-17T04:49:37.840","status":"Modified","description":"dproxy-nexgen (aka dproxy nexgen) forwards and caches DNS queries with the CD (aka checking disabled) bit set to 1. This leads to disabling of DNSSEC protection provided by upstream resolvers.","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:L/A:N","score":5.3},"cwes":["CWE-290"],"references":["https://sourceforge.net/projects/dproxy/","https://www.openwall.com/lists/oss-security/2022/08/14/3","https://www.usenix.org/conference/usenixsecurity22/presentation/jeitner","https://sourceforge.net/projects/dproxy/","https://www.openwall.com/lists/oss-security/2022/08/14/3"],"products":["dproxy-nexgen_project:dproxy-nexgen"],"source":"nvd","synced_at":"2026-10-19T21:34:18.502168378+00:00"},"epss":{"cve":"CVE-2022-33991","score":0.00992,"percentile":0.62597,"date":"2026-11-01"},"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."]}