Incorrect file permissions on the packaged Nipper executable file in Zoho ManageEngine OpManager 12.4.072 and Firewall Analyzer 12.4.072 al…

published 2019-11-21 6y ago modified 2026-06-17 4mo ago also EUVD-2019-7817

cvss: 7.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 46%
public exploits: 0; none known

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.

Patch / fix

links 1

manageengine.com/products/firewall/security-updates/cve-2019-17421.html advisory

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Exploit prediction

0.55% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

twitter.com https://twitter.com/va_start referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.2	AV:L/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness

CWE-276 Incorrect Default Permissions

References

manageengine.com /products/firewall/security-updates/cve-2019-17421.html
patch, vendor-advisory
twitter.com /va_start
exploit, third-party-advisory
blog.vastart.dev /2019/11/cve-2019-17421-privilege-escalation.html
third-party-advisory

Sources

CVE List CVE-2019-17421
NVD CVE-2019-17421

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