{"id":"CVE-2017-16720","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-16720","generatedAt":"2026-10-29T03:45:56.676Z","title":"A Path Traversal issue was discovered in WebAccess versions 8.3.2 and earlier.","description":"A Path Traversal issue was discovered in WebAccess versions 8.3.2 and earlier. An attacker has access to files within the directory structure of the target device.","published":"2018-01-05T08:29:00.000Z","lastModified":"2026-06-17T01:09:43.000Z","status":"Modified","sourceIdentifier":"ics-cert@hq.dhs.gov","cvss":{"version":"3.0","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-22"],"affected":["advantech/webaccess"],"epss":{"score":0.50321,"percentile":0.98905,"date":"2026-10-28","history":[{"date":"2026-09-21","score":0.35604,"percentile":0.98429},{"date":"2026-09-22","score":0.50321,"percentile":0.98857}]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2018-03-12","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":44278,"kind":"exploit","title":"Advantech WebAccess < 8.3 - Directory Traversal / Remote Code Execution","url":"https://www.exploit-db.com/exploits/44278","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/webapps/44278.py","file":"exploits/windows/webapps/44278.py","published":"2018-03-12","added":"2018-03-12","updated":"2018-03-12","author":"Chris Lyne","type":"webapps","platform":"windows","port":null,"verified":true,"codes":["CVE-2017-16720"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 50.3%, higher than 99% of all known CVEs. Patch or mitigate before the next change window."},"changes":[{"kind":"epss","label":"EPSS jump","at":"2026-09-22T00:00:00.000Z","detail":{"to":0.50321,"from":0.35604,"percentile":0.98857},"summary":"EPSS moved from 35.6% to 50.3% probability of exploitation in the next thirty days."}],"references":[{"url":"http://www.securityfocus.com/bid/102424","tags":["Third Party Advisory","VDB Entry"],"source":"ics-cert@hq.dhs.gov"},{"url":"https://ics-cert.us-cert.gov/advisories/ICSA-18-004-02","tags":["Broken Link","Third Party Advisory","US Government Resource"],"source":"ics-cert@hq.dhs.gov"},{"url":"https://www.exploit-db.com/exploits/44278/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"ics-cert@hq.dhs.gov"},{"url":"https://www.tenable.com/security/research/tra-2018-23","tags":["Third Party Advisory"],"source":"ics-cert@hq.dhs.gov"},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-18-024/","tags":["Third Party Advisory"],"source":"nvd@nist.gov"},{"url":"http://www.securityfocus.com/bid/102424","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://ics-cert.us-cert.gov/advisories/ICSA-18-004-02","tags":["Broken Link","Third Party Advisory","US Government Resource"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/44278/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.tenable.com/security/research/tra-2018-23","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-16720","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."}