{"cve":"CVE-2009-2666","nvd":{"published":"2009-08-07T19:00:01.063","modified":"2026-06-16T23:09:57.297","status":"Modified","description":"socket.c in fetchmail before 6.3.11 does not properly handle a '\\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-310"],"references":["http://fetchmail.berlios.de/fetchmail-SA-2009-01.txt","http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html","http://marc.info/?l=oss-security&m=124949601207156&w=2","http://osvdb.org/56855","http://secunia.com/advisories/36175"],"products":["fetchmail:fetchmail"],"source":"nvd","synced_at":"2026-10-19T19:54:26.868835795+00:00"},"epss":{"cve":"CVE-2009-2666","score":0.01503,"percentile":0.74323,"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."]}