{"id":"CVE-2009-0051","aliases":["EUVD-2009-0060","GHSA-7wm2-j7jq-4xvr"],"status":"published","title":"ZXID 0.29 and earlier does not properly check the return value from the OpenSSL DSA_verify...","description":"ZXID 0.29 and earlier does not properly check the return value from the OpenSSL DSA_verify function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01174,"percentile":0.67759,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2009-01-07T18:00:00Z","modified":"2026-06-16T23:04:10Z","products":[{"vendor":"zxid","product":"zxid"}],"references":[{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/47837","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.securityfocus.com/archive/1/499827/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://www.ocert.org/advisories/ocert-2008-016.html","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-0051"},{"url":"https://github.com/advisories/GHSA-7wm2-j7jq-4xvr"}],"sources":{"cve":[{"id":"CVE-2009-0051","description":"ZXID 0.29 and earlier does not properly check the return value from the OpenSSL DSA_verify function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077.","status":"published","published":"2009-01-07T18:00:00Z","modified":"2024-08-07T04:17:10.428Z","updated_at":"2026-11-02T14:33:26.302774Z"}],"euvd":[{"id":"EUVD-2009-0060","description":"ZXID 0.29 and earlier does not properly check the return value from the OpenSSL DSA_verify function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077.","status":"published","published":"2009-01-07T18:00:00Z","modified":"2024-08-07T04:17:10Z","updated_at":"2026-11-03T01:39:27.659956Z"}],"ghsa":[{"id":"GHSA-7wm2-j7jq-4xvr","title":"ZXID 0.29 and earlier does not properly check the return value from the OpenSSL DSA_verify...","description":"ZXID 0.29 and earlier does not properly check the return value from the OpenSSL DSA_verify function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077.","status":"published","published":"2022-05-02T03:12:35Z","modified":"2023-01-31T05:07:25Z","cwes":["CWE-287"],"updated_at":"2026-11-02T14:49:12.586507Z"}],"nvd":[{"id":"CVE-2009-0051","description":"ZXID 0.29 and earlier does not properly check the return value from the OpenSSL DSA_verify function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077.","status":"published","published":"2009-01-07T18:30:15.89Z","modified":"2026-06-16T23:04:10.22Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:01:33.417327Z"}]}}