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CVE-2021-25274

CRITICAL
9.8
CVSS Score
Published: February 3, 2021 at 04:49 PM UTC
Updated: June 17, 2026 at 03:41 AM UTC
1 product affected across 1 vendorOrion Platform

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Severity
CRITICAL9.8
Exploit prediction
EPSS 36%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Orion Platform· Solarwinds
95%
v < 2020.2.4
Affected range stops below 2020.2.4, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCExploitPatchThird Party Advisory
Source: [email protected]
https://www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/full-system-control-with-new-solarwinds-orion-based-and-serv-u-ftp-vulnerabilities/

CVSS

9.8CRITICAL[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-502

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