{"id":"CVE-2020-28653","aliases":["EUVD-2020-21051","GHSA-hxf4-fh6h-hq94"],"status":"published","title":"Zoho ManageEngine OpManager Stable build before 125203 (and Released build before 125233) allows...","description":"Zoho ManageEngine OpManager Stable build before 125203 (and Released build before 125233) allows Remote Code Execution via the Smart Update Manager (SUM) servlet.","severity":{"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","from":"nvd"},"epss":{"day":"2026-11-11","score":0.77853,"percentile":0.99576,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"published":"2021-02-03T16:00:18Z","modified":"2026-06-17T03:10:41Z","exploits":[{"source":"metasploit","id":"exploit/multi/http/opmanager_sumpdu_deserialization","title":"ManageEngine OpManager SumPDU Java Deserialization","type":"exploit","platform":"Linux,Python,Unix,Windows","date":"2021-07-26","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/multi/http/opmanager_sumpdu_deserialization"},{"source":"pocgithub","id":"tuo4n8/CVE-2020-28653","title":"tuo4n8/CVE-2020-28653","date":"2021-07-31","url":"https://github.com/tuo4n8/CVE-2020-28653"},{"source":"pocgithub","id":"intrigueio/cve-2020-28653-poc","title":"intrigueio/cve-2020-28653-poc","date":"2021-09-13","url":"https://github.com/intrigueio/cve-2020-28653-poc"},{"source":"pocgithub","id":"mr-r3bot/ManageEngine-CVE-2020-28653","title":"mr-r3bot/ManageEngine-CVE-2020-28653","date":"2022-04-07","url":"https://github.com/mr-r3bot/ManageEngine-CVE-2020-28653"},{"source":"nuclei","id":"CVE-2020-28653","title":"ManageEngine OpManager SumPDU 12.1 - 12.5.232 - Java Deserialization","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2020/CVE-2020-28653.yaml"}],"products":[{"vendor":"zohocorp","product":"manageengine_opmanager"}],"references":[{"url":"https://www.manageengine.com/network-monitoring/help/read-me-complete.html#125233","tags":["x_refsource_CONFIRM","x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://www.manageengine.com/network-monitoring/help/read-me-complete.html#125203","tags":["x_refsource_CONFIRM","x_transferred","Release Notes","Vendor Advisory"]},{"url":"http://packetstormsecurity.com/files/164231/ManageEngine-OpManager-SumPDU-Java-Deserialization.html","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-28653"},{"url":"https://github.com/advisories/GHSA-hxf4-fh6h-hq94"}],"sources":{"cve":[{"id":"CVE-2020-28653","description":"Zoho ManageEngine OpManager Stable build before 125203 (and Released build before 125233) allows Remote Code Execution via the Smart Update Manager (SUM) servlet.","status":"published","published":"2021-02-03T16:00:18Z","modified":"2024-08-04T16:40:59.809Z","updated_at":"2026-11-02T14:35:57.017407Z"}],"euvd":[{"id":"EUVD-2020-21051","description":"Zoho ManageEngine OpManager Stable build before 125203 (and Released build before 125233) allows Remote Code Execution via the Smart Update Manager (SUM) servlet.","status":"published","published":"2021-02-03T16:00:18Z","modified":"2024-08-04T16:40:59Z","updated_at":"2026-11-03T03:07:09.169254Z"}],"ghsa":[{"id":"GHSA-hxf4-fh6h-hq94","title":"Zoho ManageEngine OpManager Stable build before 125203 (and Released build before 125233) allows...","description":"Zoho ManageEngine OpManager Stable build before 125203 (and Released build before 125233) allows Remote Code Execution via the Smart Update Manager (SUM) servlet.","status":"published","published":"2022-05-24T17:40:47Z","modified":"2023-01-29T05:05:34Z","cvss":[{"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"}],"updated_at":"2026-11-02T14:45:49.336023Z"}],"nvd":[{"id":"CVE-2020-28653","description":"Zoho ManageEngine OpManager Stable build before 125203 (and Released build before 125233) allows Remote Code Execution via the Smart Update Manager (SUM) servlet.","status":"published","published":"2021-02-03T16:15:13.557Z","modified":"2026-06-17T03:10:41.347Z","cvss":[{"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"}],"updated_at":"2026-11-02T14:06:34.188486Z"}]}}