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Case File

CVE-2021-25274

CRITICAL · CVSS 9.8 EPSS 36.43% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-02-03 · 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-2021-25274
Severity
CRITICAL
CVSS
9.8
EPSS
36.43%
Microsoft

Original NVD Description

The Collector Service in SolarWinds Orion Platform before 2020.2.4 uses MSMQ (Microsoft Message Queue) and doesn't set permissions on its private queues. As a result, remote unauthenticated clients can send messages to TCP port 1801 that the Collector Service will process. Additionally, upon processing of such messages, the service deserializes them in insecure manner, allowing remote arbitrary code execution as LocalSystem.