{"cve":"CVE-2006-2659","nvd":{"published":"2006-05-30T19:02:00.000","modified":"2026-06-16T22:25:28.817","status":"Modified","description":"libs/comverp.c in Courier MTA before 0.53.2 allows attackers to cause a denial of service (CPU consumption) via unknown vectors involving usernames that contain the \"=\" (equals) character, which is not properly handled during encoding.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=368834","http://secunia.com/advisories/20519","http://secunia.com/advisories/20548","http://secunia.com/advisories/20792","http://secunia.com/advisories/21350"],"products":["double_precision_incorporated:courier_mta"],"source":"nvd","synced_at":"2026-10-19T19:42:44.451428143+00:00"},"epss":{"cve":"CVE-2006-2659","score":0.024,"percentile":0.84031,"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."]}