{"cve":"CVE-2019-17421","nvd":{"published":"2019-11-21T15:15:14.790","modified":"2026-06-17T02:23:55.683","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-276"],"references":["https://blog.vastart.dev/2019/11/cve-2019-17421-privilege-escalation.html","https://twitter.com/va_start","https://www.manageengine.com/products/firewall/security-updates/cve-2019-17421.html","https://blog.vastart.dev/2019/11/cve-2019-17421-privilege-escalation.html","https://twitter.com/va_start"],"products":["zohocorp:manageengine_firewall_analyzer","zohocorp:manageengine_opmanager"],"source":"nvd","synced_at":"2026-10-19T20:59:25.448946135+00:00"},"epss":{"cve":"CVE-2019-17421","score":0.00554,"percentile":0.46232,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}