CVE-2019-17421

HIGHNVD 7.87.8—

7.8

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.

CVSS v3: 7.8
EG Score: 7.8(medium)
EPSS: 24.4%
KEV: Not listed

Published

November 21, 2019

Last Modified

November 21, 2024

References (6)

cve@mitrehttps://blog.vastart.dev/2019/11/cve-2019-17421-privilege-escalation.html
cve@mitrehttps://twitter.com/va_start
cve@mitrehttps://www.manageengine.com/products/firewall/security-updates/cve-2019-17421.html
af854a3a-2127-422b-91ae-364da2661108https://blog.vastart.dev/2019/11/cve-2019-17421-privilege-escalation.html
af854a3a-2127-422b-91ae-364da2661108https://twitter.com/va_start
af854a3a-2127-422b-91ae-364da2661108https://www.manageengine.com/products/firewall/security-updates/cve-2019-17421.html

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-276Incorrect Default Permissions

Data Freshness Timeline

(refreshed 8× in last 7d / 16× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
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2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
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2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-27 11:24 UTCEG score recompute
2026-05-27 11:24 UTCGHSA enrichment
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2019-17421?

CVE-2019-17421 is a high vulnerability published on November 21, 2019. 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.

When was CVE-2019-17421 disclosed?

CVE-2019-17421 was first published in the National Vulnerability Database on November 21, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2019-17421 actively exploited?

CVE-2019-17421 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 24.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2019-17421?

CVE-2019-17421 has a CVSS v3 base score of 7.8 (NVD).

How do I remediate CVE-2019-17421?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-17421, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2019-17421

📅 Published

🔄 Last Modified

🔗 References (6)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2019-17421?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (6)

Frequently asked(5)

Related CVEs(same CWE)