{"id":"CVE-2022-31793","url":"https://www.cyber-defence.io/tools/cve/CVE-2022-31793","generatedAt":"2026-11-05T00:02:53.380Z","title":"do_request in request.c in muhttpd before 1.1.7 allows remote attackers to read arbitrary files by constructing a URL with a single character before a desired path on the filesystem.","description":"do_request in request.c in muhttpd before 1.1.7 allows remote attackers to read arbitrary files by constructing a URL with a single character before a desired path on the filesystem. This occurs because the code skips over the first character when serving files. Arris NVG443, NVG599, NVG589, and NVG510 devices and Arris-derived BGW210 and BGW320 devices are affected.","published":"2022-08-04T22:15:08.000Z","lastModified":"2026-06-17T04:46:19.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"cwe":["CWE-22"],"affected":["inglorion/muhttpd","arris/nvg443 firmware","arris/nvg599 firmware","arris/nvg589 firmware","arris/nvg510 firmware","arris/bgw210 firmware","arris/bgw320 firmware"],"epss":{"score":0.17746,"percentile":0.97166,"date":"2026-11-03","history":[{"date":"2026-09-28","score":0.16856,"percentile":0.9695}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 17.7%, higher than 97% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://inglorion.net/software/muhttpd/","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://blog.malwarebytes.com/exploits-and-vulnerabilities/2022/08/millions-of-arris-routers-are-vulnerable-to-path-traversal-attacks/","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://derekabdine.com/blog/2022-arris-advisory","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://kb.cert.org/vuls/id/495801","tags":["Third Party Advisory","US Government Resource"],"source":"cve@mitre.org"},{"url":"http://inglorion.net/software/muhttpd/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://blog.malwarebytes.com/exploits-and-vulnerabilities/2022/08/millions-of-arris-routers-are-vulnerable-to-path-traversal-attacks/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://derekabdine.com/blog/2022-arris-advisory","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://kb.cert.org/vuls/id/495801","tags":["Third Party Advisory","US Government Resource"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.kb.cert.org/vuls/id/495801","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2022-31793","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}