CVE-2021-3287
9.8
CRITICAL · CVSS 3.1 · EPSS 51.3% (pctl 99)
Patch early
EPSS 51.3% — above the 10% action threshold.
Description
Zoho ManageEngine OpManager before 12.5.329 allows unauthenticated Remote Code Execution due to a general bypass in the deserialization class.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 51.33% — more likely to be exploited than 99% of all CVEs |
| Weakness | CWE-502 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2021-04-22 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| zohocorp | manageengine opmanager |
References
- http://packetstormsecurity.com/files/164231/ManageEngine-OpManager-SumPDU-Java-Deserialization.html
- https://www.manageengine.com/network-monitoring/help/read-me-complete.html#125329
- http://packetstormsecurity.com/files/164231/ManageEngine-OpManager-SumPDU-Java-Deserialization.html
- https://www.manageengine.com/network-monitoring/help/read-me-complete.html#125329
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