{"id":"CVE-2021-26605","aliases":["EUVD-2021-13399","GHSA-454x-8f5c-p2fv"],"status":"published","title":"unidocs ezPDFReader arbitrary command execution vulnerability","description":"An improper input validation vulnerability in the service of ezPDFReader allows attacker to execute arbitrary command. This issue occurred when the ezPDF launcher received and executed crafted input values through JSON-RPC communication.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.01049,"percentile":0.64698,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2021-08-05T20:22:51Z","modified":"2026-06-17T03:43:33Z","products":[{"vendor":"unidocs","product":"ezpdfreader"}],"references":[{"url":"https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36168","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26605"},{"url":"https://github.com/advisories/GHSA-454x-8f5c-p2fv"}],"sources":{"cve":[{"id":"CVE-2021-26605","title":"unidocs ezPDFReader arbitrary command execution vulnerability","description":"An improper input validation vulnerability in the service of ezPDFReader allows attacker to execute arbitrary command. This issue occurred when the ezPDF launcher received and executed crafted input values through JSON-RPC communication.","status":"published","published":"2021-08-05T20:22:51Z","modified":"2024-08-03T20:26:25.55Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:32:57.368269Z"}],"euvd":[{"id":"EUVD-2021-13399","description":"An improper input validation vulnerability in the service of ezPDFReader allows attacker to execute arbitrary command. This issue occurred when the ezPDF launcher received and executed crafted input values through JSON-RPC communication.","status":"published","published":"2021-08-05T20:22:51Z","modified":"2024-08-03T20:26:25Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-03T03:24:51.40664Z"}],"ghsa":[{"id":"GHSA-454x-8f5c-p2fv","title":"An improper input validation vulnerability in the service of ezPDFReader allows attacker to...","description":"An improper input validation vulnerability in the service of ezPDFReader allows attacker to execute arbitrary command. This issue occurred when the ezPDF launcher received and executed crafted input values through JSON-RPC communication.","status":"published","published":"2022-05-24T19:10:05Z","modified":"2023-01-30T05:01:16Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:46:22.480874Z"}],"nvd":[{"id":"CVE-2021-26605","description":"An improper input validation vulnerability in the service of ezPDFReader allows attacker to execute arbitrary command. This issue occurred when the ezPDF launcher received and executed crafted input values through JSON-RPC communication.","status":"published","published":"2021-08-05T21:15:11.82Z","modified":"2026-06-17T03:43:33.04Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:06:56.562207Z"}]}}