{"cve":"CVE-2006-2940","nvd":{"published":"2006-09-28T18:07:00.000","modified":"2026-06-16T22:26:05.187","status":"Modified","description":"OpenSSL 0.9.7 before 0.9.7l, 0.9.8 before 0.9.8d, and earlier versions allows attackers to cause a denial of service (CPU consumption) via parasitic public keys with large (1) \"public exponent\" or (2) \"public modulus\" values in X.509 certificates that require extra time to process when using RSA signature verification.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-399"],"references":["ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2008-007.txt.asc","ftp://patches.sgi.com/support/free/security/advisories/20061001-01-P.asc","http://docs.info.apple.com/article.html?artnum=304829","http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01118771","http://issues.rpath.com/browse/RPL-613"],"products":["openssl:openssl"],"source":"nvd","synced_at":"2026-10-19T19:43:14.363260067+00:00"},"epss":{"cve":"CVE-2006-2940","score":0.05097,"percentile":0.92365,"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."]}