CVE-2020-28653
Zoho ManageEngine OpManager Stable build before 125203 (and Released build before 125233) allows Remote Code Execution via the Smart Update Manager (SUM) servlet.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 77.9%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.
Description
Zoho ManageEngine OpManager Stable build before 125203 (and Released build before 125233) allows Remote Code Execution via the Smart Update Manager (SUM) servlet.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 77.85% probability · 100th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- zohocorp/manageengine opmanager
- Source
- cve@mitre.org
EPSS 77.9% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://packetstormsecurity.com/files/164231/ManageEngine-OpManager-SumPDU-Java-Deserialization.htmlExploit, Third Party Advisory, VDB Entry
- https://www.manageengine.com/network-monitoring/help/read-me-complete.html#125203Release Notes, Vendor Advisory
- https://www.manageengine.com/network-monitoring/help/read-me-complete.html#125233Release Notes, Vendor Advisory
- http://packetstormsecurity.com/files/164231/ManageEngine-OpManager-SumPDU-Java-Deserialization.htmlExploit, Third Party Advisory, VDB Entry
- https://www.manageengine.com/network-monitoring/help/read-me-complete.html#125203Release Notes, Vendor Advisory
- https://www.manageengine.com/network-monitoring/help/read-me-complete.html#125233Release Notes, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.