{"version":"https://jsonfeed.org/version/1.1","title":"Patchfirst: Arcadyan vulnerabilities","home_page_url":"https://patchfirst.co/vendor/arcadyan/","feed_url":"https://patchfirst.co/feed/vendor/arcadyan.json","description":"New and newly exploited Arcadyan CVEs, with CISA KEV, EPSS and ATT&CK context. Newest 50 by publication or KEV listing.","language":"en-GB","items":[{"id":"CVE-2021-20090#kev","url":"https://patchfirst.co/cve/CVE-2021-20090/","title":"[KEV] CVE-2021-20090: Arcadyan Buffalo Firmware Path Traversal Vulnerability","content_text":"Arcadyan · Buffalo Firmware. In CISA KEV since 2021-11-03. ENISA EUVD lists it as exploited. EPSS >99.9% (higher than 99.98% of CVEs). CVSS 9.8 CRITICAL. Public exploit code exists. ATT&CK: T1190 Exploit Public-Facing Application; T1078 Valid Accounts. Named in 1 threat report. Priority 73.7 of 100.","summary":"Arcadyan Buffalo Firmware Path Traversal Vulnerability","date_published":"2021-11-03T00:00:00.000Z","date_modified":"2026-06-17T03:33:15.000Z","tags":["kev","public-exploit","T1190","T1078"],"_patchfirst":{"reason":"kev","priority":73.7,"kev":{"dateAdded":"2021-11-03","ransomware":false},"epss":{"score":0.99982,"percentile":0.99982},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1"},"vendor":"Arcadyan","product":"Buffalo Firmware","techniqueIds":["T1190","T1078"],"reportCount":1,"hasPublicExploit":true,"euvdExploited":true}}]}