{"id":"CVE-2016-3976","published":"2016-04-07T23:59:10Z","modified":"2026-06-17T00:46:39Z","title":"SAP NetWeaver Directory Traversal Vulnerability","vendor":"SAP","product":"NetWeaver","tier":"core","eol":null,"description":{"text":"Directory traversal vulnerability in SAP NetWeaver AS Java 7.1 through 7.5 allows remote attackers to read arbitrary files via a ..\\ (dot dot backslash) in the fileName parameter to CrashFileDownloadServlet, aka SAP Security Note 2234971.","provenance":"source","from":"NVD"},"summary":{"text":"The directory traversal flaw lies in the CrashFileDownloadServlet component of SAP NetWeaver AS Java, versions 7.1 through 7.5, where the fileName parameter is not properly restricted to an intended directory. A remote attacker with no authentication or user interaction can send a crafted request containing a ..\\ sequence in fileName to read arbitrary files on the server.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-31T05:10:11Z"},"cvss":{"score":7.5,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","provenance":"source","from":"NVD"},"epss":{"score":0.47252,"percentile":0.98837,"date":"2026-10-30","provenance":"source"},"kev":{"dateAdded":"2021-11-03","dueDate":"2022-05-03","ransomware":false,"requiredAction":"Apply updates per vendor instructions.","notes":"https://nvd.nist.gov/vuln/detail/CVE-2016-3976","provenance":"source"},"vulncheckKev":{"dateAdded":"2021-04-08","exploitedFirstSeen":"2021-04-08","ransomware":false,"evidence":[{"url":"https://digital.nhs.uk/cyber-alerts/2021/cc-3815","date":"2021-04-08"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2021-11-03"},{"url":"https://www.csoonline.com/article/3674119/most-common-sap-vulnerabilities-attackers-try-to-exploit.html","date":"2022-09-20"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2026-10-27&host_type=src&vulnerability=cve-2016-3976","date":"2026-10-27"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2026-10-28&host_type=src&vulnerability=cve-2016-3976","date":"2026-10-28"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2026-10-29&host_type=src&vulnerability=cve-2016-3976","date":"2026-10-29"}],"evidenceTotal":6,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"},{"name":"Actively_Exploited_Kev | Oct 18, 2026","url":"https://otx.alienvault.com/pulse/6ad38c22e1848f8189d1c121","created":"2026-10-17"}],"provenance":"machine"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"}],"references":[{"url":"http://packetstormsecurity.com/files/137528/SAP-NetWeaver-AS-JAVA-7.5-Directory-Traversal.html","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"http://seclists.org/fulldisclosure/2016/Jun/40","tags":["Exploit","Mailing List","Third Party Advisory"]},{"url":"https://erpscan.io/advisories/erpscan-16-012/","tags":["Third Party Advisory"]},{"url":"https://erpscan.io/press-center/blog/sap-security-notes-march-2016-review/","tags":["Third Party Advisory"]},{"url":"https://launchpad.support.sap.com/#/notes/2234971","tags":["Permissions Required"]},{"url":"https://www.exploit-db.com/exploits/39996/","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"http://packetstormsecurity.com/files/137528/SAP-NetWeaver-AS-JAVA-7.5-Directory-Traversal.html","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"http://seclists.org/fulldisclosure/2016/Jun/40","tags":["Exploit","Mailing List","Third Party Advisory"]},{"url":"https://erpscan.io/advisories/erpscan-16-012/","tags":["Third Party Advisory"]},{"url":"https://erpscan.io/press-center/blog/sap-security-notes-march-2016-review/","tags":["Third Party Advisory"]},{"url":"https://launchpad.support.sap.com/#/notes/2234971","tags":["Permissions Required"]},{"url":"https://www.exploit-db.com/exploits/39996/","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-3976","tags":["US Government Resource"]}],"techniques":[{"id":"T1190","name":"Exploit Public-Facing Application","tactics":["initial-access"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: remote unauthenticated exploitation of public-facing SAP web servlet","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"allows remote attackers to read arbitrary files","start":75,"end":122}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1005","name":"Data from Local System","tactics":["collection"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: traversal enables reading local files from host","mappingType":"primary_impact","evidence":[{"from":"description","quote":"read arbitrary files via a ..\\ (dot dot backslash)","start":102,"end":152}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2016-4985","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2016-4985","exploited":true,"exploitedSince":"2021-11-03","provenance":"source"},"exploits":[{"id":39996,"url":"https://www.exploit-db.com/exploits/39996","title":"SAP NetWeaver AS JAVA 7.1 < 7.5 - Directory Traversal","type":"webapps","platform":"java","date":"2016-06-21","verified":false,"provenance":"source"}],"exploitSources":{"exploitdb":{"count":1,"earliest":"2016-06-21"},"first":{"date":"2016-06-21","source":"Exploit-DB","url":"https://www.exploit-db.com/exploits/39996"},"provenance":"source"},"exploitRefs":["http://packetstormsecurity.com/files/137528/SAP-NetWeaver-AS-JAVA-7.5-Directory-Traversal.html","http://seclists.org/fulldisclosure/2016/Jun/40","https://www.exploit-db.com/exploits/39996/"],"flow":[{"stage":"exploitation","techniques":["T1190"],"provenance":"ai"},{"stage":"primary","techniques":["T1005"],"provenance":"ai"}],"timeline":[{"date":"2016-04-07","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2016-3976","provenance":"source"},{"date":"2016-06-21","kind":"exploit-public","label":"First public exploit: Exploit-DB (EDB-39996)","url":"https://www.exploit-db.com/exploits/39996","provenance":"source"},{"date":"2021-04-08","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://digital.nhs.uk/cyber-alerts/2021/cc-3815","provenance":"source"},{"date":"2021-11-03","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2021-11-03","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2016-4985","provenance":"source"}],"speed":{"daysToPublicExploit":75,"firstExploitFrom":"Exploit-DB","daysToKev":2036},"priority":{"score":68.0,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 2032 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS 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