{"id":"CVE-2021-33591","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-33591","generatedAt":"2026-10-27T23:27:23.744Z","title":"An exposed remote debugging port in Naver Comic Viewer prior to 1.0.15.0 allowed a remote attacker to execute arbitrary code via a crafted HTML page.","description":"An exposed remote debugging port in Naver Comic Viewer prior to 1.0.15.0 allowed a remote attacker to execute arbitrary code via a crafted HTML page.","published":"2021-05-28T11:15:08.000Z","lastModified":"2026-06-17T03:54:50.000Z","status":"Modified","sourceIdentifier":"cve@navercorp.com","cvss":{"version":"3.1","score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":["CWE-489"],"affected":["naver/comic viewer"],"epss":{"score":0.01588,"percentile":0.75455,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.59%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://cve.naver.com/detail/cve-2021-33591","tags":["Vendor Advisory"],"source":"cve@navercorp.com"},{"url":"https://cve.naver.com/detail/cve-2021-33591","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-33591","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."}