Which products and versions are affected by CVE-2018-12998?

Affected: Firewall Analyzer (Zohocorp); Manageengine Netflow Analyzer (Zohocorp); Manageengine Network Configuration Manager (Zohocorp), among others. The full list is in the CVE brief.

Is CVE-2018-12998 being exploited in the wild?

It is exploited in the wild, listed in Industry KEV feed since Jun 11, 2025.

Is CVE-2018-12998 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-2018-12998?

No public exploit code is known.

Is there a fix for CVE-2018-12998?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2018-12998 be patched?

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

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Vulnerability Intelligence

CVE-2018-12998

MediumExploited

Published Jun 29, 2018 · Updated Nov 21, 2024

Key Facts

Patch immediately

CVE-2018-12998 is a medium-severity vulnerability (CVSS 6.1 v3.1) affecting Firewall Analyzer (Zohocorp), Manageengine Netflow Analyzer (Zohocorp), Manageengine Network Configuration Manager (Zohocorp) and 2 more products.
It is exploited in the wild, listed in Industry KEV feed since Jun 11, 2025. No public exploit code is known.
EPSS estimates a 99% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

6.1

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

EPSS (30-day exploit likelihood)

99%

Higher than 99.9% of all scored CVEs

Exploited in the wild

Yes

1 catalog listing

Public exploit code

None known

Get the full CVE-2018-12998 brief as a PDF

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

Description

A reflected Cross-site scripting (XSS) vulnerability in Zoho ManageEngine Netflow Analyzer before build 123137, Network Configuration Manager before build 123128, OpManager before build 123148, OpUtils before build 123161, and Firewall Analyzer before build 123147 allows remote attackers to inject arbitrary web script or HTML via the parameter 'operation' to /servlet/com.adventnet.me.opmanager.servlet.FailOverHelperServlet.

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
Industry KEV feed	Jun 11, 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

5 affected entries in total

Product	Affected versions	Fixed in
Firewall AnalyzerZohocorp	See advisory	n/a
Manageengine Netflow AnalyzerZohocorp	See advisory	n/a
Manageengine Network Configuration ManagerZohocorp	See advisory	n/a
Manageengine OpmanagerZohocorp	See advisory	n/a
Manageengine OputilsZohocorp	See advisory	n/a

Timeline

Publicly disclosed
Jun 29, 2018
Last updated
Nov 21, 2024
Added to Industry KEV feed
Jun 11, 2025

Weakness Type

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

References

FAQ

Common Questions.

A reflected Cross-site scripting (XSS) vulnerability in Zoho ManageEngine Netflow Analyzer before build 123137, Network Configuration Manager before build 123128, OpManager before build 123148, OpUtils before build 123161, and Firewall Analyzer before build 123147 allows remote attackers to inject arbitrary web script…
Affected: Firewall Analyzer (Zohocorp); Manageengine Netflow Analyzer (Zohocorp); Manageengine Network Configuration Manager (Zohocorp), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Jun 11, 2025.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Is CVE-2018-12998 Running On Your Attack Surface?

Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.