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Case File

CVE-2021-33527

CRITICAL · CVSS 9.8 EPSS 4.52% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-08-02 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
arbitrary code execution code execution

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-33527
Severity
CRITICAL
CVSS
9.8
EPSS
4.52%

Original NVD Description

In MB connect line mbDIALUP versions <= 3.9R0.0 a remote attacker can send a specifically crafted HTTP request to the service running with NT AUTHORITY\SYSTEM that will not correctly validate the input. This can lead to an arbitrary code execution with the privileges of the service.