{"cve":"CVE-2022-45195","nvd":{"published":"2022-11-12T19:15:10.707","modified":"2026-06-17T05:09:37.120","status":"Modified","description":"SimpleXMQ before 3.4.0, as used in SimpleX Chat before 4.2, does not apply a key derivation function to intended data, which can interfere with forward secrecy and can have other impacts if there is a compromise of a single private key. This occurs in the X3DH key exchange for the double ratchet protocol.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","score":5.3},"cwes":["CWE-327"],"references":["https://github.com/simplex-chat/simplexmq/compare/v3.3.0...v3.4.0","https://github.com/simplex-chat/simplexmq/pull/548","https://github.com/trailofbits/publications/blob/master/reviews/SimpleXChat.pdf","https://simplex.chat/blog/20221108-simplex-chat-v4.2-security-audit-new-website.html","https://github.com/simplex-chat/simplexmq/compare/v3.3.0...v3.4.0"],"products":["simplex:simplex_chat","simplex:simplexmq"],"source":"nvd","synced_at":"2026-10-19T21:37:08.729216836+00:00"},"epss":{"cve":"CVE-2022-45195","score":0.00643,"percentile":0.50853,"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."]}