{"id":"CVE-2021-20034","published":"2021-09-27T17:20:10Z","modified":"2024-08-03T17:30:07Z","title":"An improper access control vulnerability in SMA100 allows a remote unauthenticated attacker to bypass the path…","vendor":"SonicWall","product":"SMA100","tier":"core","eol":null,"affectedVersions":[{"vendor":"SonicWall","product":"SMA100","versions":["9.0.0.10-28sv and earlier","10.2.0.7-34sv and earlier","10.2.1.0-17sv and earlier"]}],"description":{"text":"An improper access control vulnerability in SMA100 allows a remote unauthenticated attacker to bypass the path traversal checks and delete an arbitrary file potentially resulting in a reboot to factory default settings.","provenance":"source","from":"CVE.org"},"summary":{"text":"The SonicWall SMA100 contains an improper access control flaw in its path traversal checks. A remote, unauthenticated attacker can exploit it to delete an arbitrary file, which could cause the device to reboot to factory default settings, with no authentication or user interaction required and only network reachability assumed.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-29T07:18:26Z"},"cvss":null,"epss":{"score":0.81831,"percentile":0.99646,"date":"2026-10-29","provenance":"source"},"kev":null,"vulncheckKev":null,"exploited":false,"otx":{"pulseCount":0,"pulses":[],"provenance":"machine"},"cwes":[{"id":"CWE-284","name":"Improper Access Control"}],"references":[{"url":"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0021","tags":["x_refsource_CONFIRM"]},{"url":"http://packetstormsecurity.com/files/164564/SonicWall-SMA-10.2.1.0-17sv-Password-Reset.html","tags":["x_refsource_MISC"]}],"techniques":[],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2021-7497","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-7497","exploited":false,"exploitedSince":null,"provenance":"source"},"exploits":[{"id":50430,"url":"https://www.exploit-db.com/exploits/50430","title":"SonicWall SMA 10.2.1.0-17sv - Password Reset","type":"webapps","platform":"hardware","date":"2021-10-20","verified":false,"provenance":"source"}],"exploitSources":{"exploitdb":{"count":1,"earliest":"2021-10-20"},"first":{"date":"2021-10-20","source":"Exploit-DB","url":"https://www.exploit-db.com/exploits/50430"},"provenance":"source"},"exploitRefs":["http://packetstormsecurity.com/files/164564/SonicWall-SMA-10.2.1.0-17sv-Password-Reset.html"],"flow":[],"timeline":[{"date":"2021-09-27","kind":"published","label":"Published (CVE.org)","url":"https://www.cve.org/CVERecord?id=CVE-2021-20034","provenance":"source"},{"date":"2021-10-20","kind":"exploit-public","label":"First public exploit: Exploit-DB (EDB-50430)","url":"https://www.exploit-db.com/exploits/50430","provenance":"source"}],"speed":{"daysToPublicExploit":23,"firstExploitFrom":"Exploit-DB","daysToKev":null},"priority":{"score":24.9,"factors":[{"name":"In a KEV catalog","points":0.0,"detail":"not listed"},{"name":"Recent KEV listing","points":0.0,"detail":"not listed"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.93,"detail":"percentile 0.9965"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"1 Exploit-DB entry; 1 NVD exploit link"},{"name":"Mentioned in OTX pulses","points":0.0,"detail":"0 pulses"},{"name":"CVSS severity","points":0.0,"detail":"no CVSS"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}