Which products and versions are affected by CVE-2020-28653?

Affected: Manageengine Opmanager (Zohocorp) versions 12.5-build125000, 12.5-build125002, 12.5-build125100, 12.5-build125101, 12.5-build125102, 12.5-build125108, 12.5-build125110, 12.5-build125111. The full list is in the CVE brief.

Is CVE-2020-28653 being exploited in the wild?

It is exploited in the wild, listed in Industry KEV feed since Oct 28, 2025.

Is CVE-2020-28653 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2020-28653?

Public exploit code is available.

Is there a fix for CVE-2020-28653?

Fixed versions are available, including Manageengine Opmanager 12.5.

How urgently should CVE-2020-28653 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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Vulnerability Intelligence

CVE-2020-28653

CriticalExploitedPublic exploit

Zoho ManageEngine OpManager Stable build before 125203 (and Released build before 125233) allows Remote Code Execution via the Smart Update Manager (SUM) servlet.

Published Feb 3, 2021 · Updated Nov 21, 2024

Key Facts

Patch immediately

CVE-2020-28653 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Manageengine Opmanager (Zohocorp).
It is exploited in the wild, listed in Industry KEV feed since Oct 28, 2025. Public exploit code is available.
EPSS estimates a 79% probability of exploitation in the next 30 days.
Fixed versions are available, including Manageengine Opmanager 12.5.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

9.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

79%

Higher than 99.5% of all scored CVEs

Exploited in the wild

Yes

1 catalog listing

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2020-28653 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Zoho ManageEngine OpManager Stable build before 125203 (and Released build before 125233) allows Remote Code Execution via the Smart Update Manager (SUM) servlet.

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
Industry KEV feed	Oct 28, 2025	n/a	Not reported

Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Affected Products

59 affected entries in total

Product	Affected versions	Fixed in
Manageengine OpmanagerZohocorp	12.5-build125000, 12.5-build125002, 12.5-build125100, 12.5-build125101, 12.5-build125102, 12.5-build125108, 12.5-build125110, 12.5-build125111	12.5

Patched Releases

Manageengine Opmanager

12.5

Timeline

Publicly disclosed
Feb 3, 2021
Last updated
Nov 21, 2024
Added to Industry KEV feed
Oct 28, 2025

References

FAQ

Common Questions.

Zoho ManageEngine OpManager Stable build before 125203 (and Released build before 125233) allows Remote Code Execution via the Smart Update Manager (SUM) servlet.
Affected: Manageengine Opmanager (Zohocorp) versions 12.5-build125000, 12.5-build125002, 12.5-build125100, 12.5-build125101, 12.5-build125102, 12.5-build125108, 12.5-build125110, 12.5-build125111. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Oct 28, 2025.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Manageengine Opmanager 12.5.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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