CVE-2019-17421

Name: CVE-2019-17421
Creator: NVD / NIST
Published: 2019-11-21T15:15:14.79+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.55%

Last modified Jun 17, 2026

CVE-2019-17421 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Incorrect file permissions on the packaged Nipper executable file in Zoho ManageEngine OpManager 12.4.072 and Firewall Analyzer 12.4.072 allow local users to elevate privileges to root by overwriting this file with a malicious payload.. EPSS estimates a 0.55% chance of exploitation in the next 30 days.

Description

Incorrect file permissions on the packaged Nipper executable file in Zoho ManageEngine OpManager 12.4.072 and Firewall Analyzer 12.4.072 allow local users to elevate privileges to root by overwriting this file with a malicious payload.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.55%

42.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-276

Affected Software

Vendor	Product	Versions	Update
Zohocorp	Manageengine Firewall Analyzer	12.4	124072
Zohocorp	Manageengine Opmanager	12.4	Build124072

References

https://blog.vastart.dev/2019/11/cve-2019-17421-privilege-escalation.htmlThird Party Advisory
https://twitter.com/va_startExploit, Third Party Advisory
https://www.manageengine.com/products/firewall/security-updates/cve-2019-17421.htmlPatch, Vendor Advisory
https://blog.vastart.dev/2019/11/cve-2019-17421-privilege-escalation.htmlThird Party Advisory
https://twitter.com/va_startExploit, Third Party Advisory
https://www.manageengine.com/products/firewall/security-updates/cve-2019-17421.htmlPatch, Vendor Advisory

Timeline

Published: Nov 21, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-17421?

How severe is CVE-2019-17421?

CVE-2019-17421 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.55% probability of exploitation in the next 30 days.

How do I fix CVE-2019-17421?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-17421?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST