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Known exploited · Netwrix

CVE-2022-31199: Netwrix Auditor Insecure Object Deserialization Vulnerability

What it is

Netwrix Auditor User Activity Video Recording component contains an insecure objection deserialization vulnerability that allows an unauthenticated, remote attacker to execute code as the NT AUTHORITY\SYSTEM user. Successful exploitation requires that the attacker is able to reach port 9004/TCP, which is commonly blocked by standard enterprise firewalling.

Added July 11, 2023Due August 1, 2023CISA KEV catalog 2026.10.01

Vendor
Netwrix
Product
Auditor
Added to KEV
July 11, 2023
CISA due date
August 1, 2023
Ransomware use
Known

What CISA requires

Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

Forensic triage

No

What to do now

  1. Find every instance of Auditor you run, including the forgotten ones, and check its version against the vendor advisory.
  2. Apply the vendor's fix or mitigation, before August 1, 2023 if you are bound by CISA's deadline, sooner if it faces the internet.
  3. Assume it was tried against you already: look for signs of exploitation from the date it was added, not from the day you patched.
  4. Until every instance is patched, block the attack at the edge: a WAF in blocking mode stops Java deserialization payloads.

References

CVE-2022-31199 in the National Vulnerability Database

The Dome

Block it at the edge while you patch

The Dome's WAF runs the OWASP Core Rule Set in blocking mode and stops Java deserialization payloads before they reach your application.

See the Dome

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Train the engineers who fix it

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Source: CISA Known Exploited Vulnerabilities Catalog (public domain), catalog version 2026.10.01.