{"id":"CVE-2023-20073","published":"2023-04-05T00:00:00Z","modified":"2024-10-28T16:31:07Z","title":"Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers Arbitrary File Upload Vulnerability","vendor":"Cisco","product":"Cisco Small Business RV Series Router Firmware","tier":"core","eol":null,"description":{"text":"A vulnerability in the web-based management interface of Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an unauthenticated, remote attacker to upload arbitrary files to an affected device. This vulnerability is due to insufficient authorization enforcement mechanisms in the context of file uploads. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to upload arbitrary files to the affected device.","provenance":"source","from":"CVE.org"},"summary":{"text":"The flaw is an insufficient authorization check on file uploads in the web-based management interface of Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers, part of the Cisco Small Business RV Series Router Firmware. An unauthenticated remote attacker who sends a crafted HTTP request to an affected device can upload arbitrary files to it, requiring no credentials, no user interaction, and only network access to the management interface.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-29T07:13:37Z"},"cvss":{"score":5.3,"severity":"MEDIUM","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.90106,"percentile":0.99795,"date":"2026-10-30","provenance":"source"},"kev":null,"vulncheckKev":{"dateAdded":"2023-11-15","exploitedFirstSeen":"2023-11-15","ransomware":false,"evidence":[{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-11-15&host_type=src&vulnerability=cve-2023-20073","date":"2023-11-15"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-12-04&host_type=src&vulnerability=cve-2023-20073","date":"2023-12-04"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-12-10&host_type=src&vulnerability=cve-2023-20073","date":"2023-12-10"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-12-14&host_type=src&vulnerability=cve-2023-20073","date":"2023-12-14"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-12-15&host_type=src&vulnerability=cve-2023-20073","date":"2023-12-15"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-01-22&host_type=src&vulnerability=cve-2023-20073","date":"2024-01-22"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-01-23&host_type=src&vulnerability=cve-2023-20073","date":"2024-01-23"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-01-25&host_type=src&vulnerability=cve-2023-20073","date":"2024-01-25"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-01-28&host_type=src&vulnerability=cve-2023-20073","date":"2024-01-28"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-01-30&host_type=src&vulnerability=cve-2023-20073","date":"2024-01-30"}],"evidenceTotal":485,"provenance":"source"},"exploited":true,"otx":{"pulseCount":0,"pulses":[],"provenance":"machine"},"cwes":[{"id":"CWE-434","name":"Unrestricted Upload of File with Dangerous Type"}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-rv-afu-EXxwA65V","tags":["vendor-advisory"]}],"techniques":[],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2023-24252","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2023-24252","exploited":false,"exploitedSince":null,"provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":1,"skipped":0,"earliest":"2023-08-18","earliestUrl":"https://github.com/RegularITCat/CVE-2023-20073","repos":[{"name":"RegularITCat/CVE-2023-20073","url":"https://github.com/RegularITCat/CVE-2023-20073","stars":1,"created":"2023-08-18"}]},"nuclei":[{"id":"CVE-2023-20073","name":"Cisco VPN Routers - Unauthenticated Arbitrary File Upload","severity":"critical","path":"http/cves/2023/CVE-2023-20073.yaml","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-20073.yaml"}],"first":{"date":"2023-08-18","source":"PoC-in-GitHub","url":"https://github.com/RegularITCat/CVE-2023-20073"},"provenance":"source"},"exploitRefs":[],"flow":[],"timeline":[{"date":"2023-04-05","kind":"published","label":"Published (CVE.org)","url":"https://www.cve.org/CVERecord?id=CVE-2023-20073","provenance":"source"},{"date":"2023-08-18","kind":"exploit-public","label":"First public exploit: PoC-in-GitHub","url":"https://github.com/RegularITCat/CVE-2023-20073","provenance":"source"},{"date":"2023-11-15","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2023-11-15&host_type=src&vulnerability=cve-2023-20073","provenance":"source"}],"speed":{"daysToPublicExploit":135,"firstExploitFrom":"PoC-in-GitHub","daysToKev":null},"priority":{"score":63.7,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 1081 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.96,"detail":"percentile 0.9980"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"1 PoC-in-GitHub repo; 1 nuclei template"},{"name":"Mentioned in OTX pulses","points":0.0,"detail":"0 pulses"},{"name":"CVSS severity","points":3.71,"detail":"base score 5.3"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}