SEPTEMBER 30, 2026
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Case File

CVE-2021-33191

CRITICAL · CVSS 9.8 EPSS 4.02%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-08-24 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. It affects Apache.

CVE
CVE-2021-33191
Severity
CRITICAL
CVSS
9.8
EPSS
4.02%
Apache

Original NVD Description

From Apache NiFi MiNiFi C++ version 0.5.0 the c2 protocol implements an "agent-update" command which was designed to patch the application binary. This "patching" command defaults to calling a trusted binary, but might be modified to an arbitrary value through a "c2-update" command. Said command is then executed using the same privileges as the application binary. This was addressed in version 0.10.0

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