CVE-2022-31199Known exploitationPublic exploitNetwork attack vector

Unauthenticated SYSTEM code execution via unsafe deserialization

Published Nov 8, 2022 · Updated Oct 21, 2025

Insecure deserialization in Netwrix Auditor before 10.5 allows remote attackers to execute code as NT AUTHORITY\SYSTEM over TCP port 9004. The UAVRServer .NET remoting endpoint accepts attacker-supplied serialized objects and instantiates them without a trust boundary, triggering gadget-driven command execution. The server is exposed regardless of User Activity configuration; monitored Windows systems are exposed when the User Activity data source or a stale agent is present.

CVSS severity9.8
Critical
EPSS probability36.01%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insecure deserialization in Netwrix Auditor before 10.5 allows remote attackers to execute code as NT AUTHORITY\SYSTEM over TCP port 9004. The UAVRServer .NET remoting endpoint accepts attacker-supplied serialized objects and instantiates them without a trust boundary, triggering gadget-driven command execution. The server is exposed regardless of User Activity configuration; monitored Windows systems are exposed when the User Activity data source or a stale agent is present.

The record

CVE
CVE-2022-31199
Published
Nov 8, 2022
Updated
Oct 21, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-502, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 8, 2022CVE publishedPublication date reported by the CVE source.
  2. Oct 21, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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