{"cve":"CVE-2021-33591","nvd":{"published":"2021-05-28T11:15:08.173","modified":"2026-06-17T03:54:50.367","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-489"],"references":["https://cve.naver.com/detail/cve-2021-33591","https://cve.naver.com/detail/cve-2021-33591"],"products":["naver:comic_viewer"],"source":"nvd","synced_at":"2026-10-19T21:18:09.669877188+00:00"},"epss":{"cve":"CVE-2021-33591","score":0.01588,"percentile":0.75633,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}