CVE-2021-40493Network attack vector

Unauthenticated SQL injection via pollingObject parameter

Published Oct 13, 2021 · Updated Aug 4, 2024

SQL injection in Zoho ManageEngine OpManager 125140 through 125436 allows remote attackers to manipulate its database via a crafted API request. The support diagnostics module passes the pollingObject parameter from the getDataCollectionFailureReason API into an SQL command without neutralizing SQL syntax. Unauthenticated network access to the API is sufficient, and successful injection permits reading, changing, or deleting database data and can interrupt service.

CVSS severity9.8
Critical
EPSS probability50.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in Zoho ManageEngine OpManager 125140 through 125436 allows remote attackers to manipulate its database via a crafted API request. The support diagnostics module passes the pollingObject parameter from the getDataCollectionFailureReason API into an SQL command without neutralizing SQL syntax. Unauthenticated network access to the API is sufficient, and successful injection permits reading, changing, or deleting database data and can interrupt service.

The record

CVE
CVE-2021-40493
Published
Oct 13, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-89, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 13, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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