{"id":"CVE-2016-4407","aliases":["EUVD-2016-5407","GHSA-vrcm-r83p-fhmh"],"status":"published","title":"The DSA algorithm implementation in SAP SAPCRYPTOLIB 5.555.38 does not properly check signatures,...","description":"The DSA algorithm implementation in SAP SAPCRYPTOLIB 5.555.38 does not properly check signatures, which allows remote authenticated users to impersonate arbitrary users via unspecified vectors, aka SAP Security Note 2223008.","severity":{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00956,"percentile":0.61646,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-284"],"published":"2016-10-13T14:00:00Z","modified":"2026-06-17T00:47:30Z","products":[{"vendor":"sap","product":"sapcryptolib"}],"references":[{"url":"http://www.securityfocus.com/bid/93502","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://seclists.org/fulldisclosure/2016/Oct/32","tags":["mailing-list","x_refsource_FULLDISC","x_transferred","Mailing List","Third Party Advisory"]},{"url":"https://www.onapsis.com/research/security-advisories/sap-missing-signature-check-dsa-algorithm","tags":["x_refsource_MISC","x_transferred","Permissions Required"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-4407"},{"url":"https://github.com/advisories/GHSA-vrcm-r83p-fhmh"}],"sources":{"cve":[{"id":"CVE-2016-4407","description":"The DSA algorithm implementation in SAP SAPCRYPTOLIB 5.555.38 does not properly check signatures, which allows remote authenticated users to impersonate arbitrary users via unspecified vectors, aka SAP Security Note 2223008.","status":"published","published":"2016-10-13T14:00:00Z","modified":"2024-08-06T00:25:14.494Z","updated_at":"2026-11-02T14:33:35.149563Z"}],"euvd":[{"id":"EUVD-2016-5407","description":"The DSA algorithm implementation in SAP SAPCRYPTOLIB 5.555.38 does not properly check signatures, which allows remote authenticated users to impersonate arbitrary users via unspecified vectors, aka SAP Security Note 2223008.","status":"published","published":"2016-10-13T14:00:00Z","modified":"2024-08-06T00:25:14Z","updated_at":"2026-11-03T02:22:46.750795Z"}],"ghsa":[{"id":"GHSA-vrcm-r83p-fhmh","title":"The DSA algorithm implementation in SAP SAPCRYPTOLIB 5.555.38 does not properly check signatures,...","description":"The DSA algorithm implementation in SAP SAPCRYPTOLIB 5.555.38 does not properly check signatures, which allows remote authenticated users to impersonate arbitrary users via unspecified vectors, aka SAP Security Note 2223008.","status":"published","published":"2022-05-17T03:41:25Z","modified":"2023-01-27T05:08:25Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T14:43:17.773763Z"}],"nvd":[{"id":"CVE-2016-4407","description":"The DSA algorithm implementation in SAP SAPCRYPTOLIB 5.555.38 does not properly check signatures, which allows remote authenticated users to impersonate arbitrary users via unspecified vectors, aka SAP Security Note 2223008.","status":"published","published":"2016-10-13T14:59:06.19Z","modified":"2026-06-17T00:47:30.433Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T14:03:31.485755Z"}]}}