How severe is CVE-2019-17421?

CVE-2019-17421 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-17421 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-17421?

CVE-2019-17421 primarily affects Zohocorp Manageengine Firewall Analyzer. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-17421?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-17421 published?

CVE-2019-17421 was published on 2019-11-21 and last updated on 2026-06-17.

CVE-2019-17421

CVE-2019-17421 is a high-severity vulnerability in Zohocorp Manageengine Firewall Analyzer with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-276.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 7.2
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-276
Affected product: Zohocorp Manageengine Firewall Analyzer
Published: 2019-11-21
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2019-17421?: 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.
How severe is CVE-2019-17421?: CVE-2019-17421 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-17421 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-17421?: CVE-2019-17421 primarily affects Zohocorp Manageengine Firewall Analyzer. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-17421?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-17421 published?: CVE-2019-17421 was published on 2019-11-21 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:zohocorp:manageengine_firewall_analyzer:12.4:124072:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_opmanager:12.4:build124072:*:*:*:*:*:*

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