{"id":"CVE-2021-20803","aliases":["EUVD-2021-8215","GHSA-9f3v-4733-p868"],"status":"published","title":"Operation restriction bypass in the management screen of Cybozu Remote Service 3.1.8 to 3.1.9...","description":"Operation restriction bypass in the management screen of Cybozu Remote Service 3.1.8 to 3.1.9 allows a remote authenticated attacker to alter the data of the management screen.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00716,"percentile":0.54207,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-863"],"published":"2021-10-13T08:31:00Z","modified":"2026-06-17T03:34:28Z","products":[{"vendor":"cybozu","product":"remote_service_manager"},{"vendor":"cybozu, inc.","product":"cybozu remote service"}],"references":[{"url":"https://jvn.jp/en/jp/JVN52694228/index.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://kb.cybozu.support/article/37421","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20803"},{"url":"https://github.com/advisories/GHSA-9f3v-4733-p868"}],"sources":{"cve":[{"id":"CVE-2021-20803","description":"Operation restriction bypass in the management screen of Cybozu Remote Service 3.1.8 to 3.1.9 allows a remote authenticated attacker to alter the data of the management screen.","status":"published","published":"2021-10-13T08:31:00Z","modified":"2024-08-03T17:53:22.318Z","updated_at":"2026-11-02T14:32:55.19484Z"}],"euvd":[{"id":"EUVD-2021-8215","description":"Operation restriction bypass in the management screen of Cybozu Remote Service 3.1.8 to 3.1.9 allows a remote authenticated attacker to alter the data of the management screen.","status":"published","published":"2021-10-13T08:31:00Z","modified":"2024-08-03T17:53:22Z","updated_at":"2026-11-03T03:25:07.874589Z"}],"ghsa":[{"id":"GHSA-9f3v-4733-p868","title":"Operation restriction bypass in the management screen of Cybozu Remote Service 3.1.8 to 3.1.9...","description":"Operation restriction bypass in the management screen of Cybozu Remote Service 3.1.8 to 3.1.9 allows a remote authenticated attacker to alter the data of the management screen.","status":"published","published":"2022-05-24T19:17:25Z","modified":"2023-01-30T05:02:49Z","cwes":["CWE-863"],"updated_at":"2026-11-02T14:46:43.162136Z"}],"nvd":[{"id":"CVE-2021-20803","description":"Operation restriction bypass in the management screen of Cybozu Remote Service 3.1.8 to 3.1.9 allows a remote authenticated attacker to alter the data of the management screen.","status":"published","published":"2021-10-13T09:15:08.05Z","modified":"2026-06-17T03:34:28.667Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:06:59.689345Z"}]}}