CVE-2022-36964Public exploitNetwork attack vector

Authenticated code execution via PropertyBag type control

Published Nov 29, 2022 · Updated Apr 25, 2025

Deserialization in SolarWinds Platform 2022.3 and earlier allows remote authenticated users to execute arbitrary code through the SWIS API. The TestAlertingAction SWIS verb accepts a Contract2.PropertyBag whose ReadXml path passes attacker-controlled type and XML values to DeserializeFromStrippedXml without validating the target type. Valid SolarWinds Web Console access is required, and successful exploitation runs code as SYSTEM with complete host impact.

CVSS severity8.8
High
EPSS probability16.83%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization in SolarWinds Platform 2022.3 and earlier allows remote authenticated users to execute arbitrary code through the SWIS API. The TestAlertingAction SWIS verb accepts a Contract2.PropertyBag whose ReadXml path passes attacker-controlled type and XML values to DeserializeFromStrippedXml without validating the target type. Valid SolarWinds Web Console access is required, and successful exploitation runs code as SYSTEM with complete host impact.

The record

CVE
CVE-2022-36964
Published
Nov 29, 2022
Updated
Apr 25, 2025
Vendor
SolarWinds
Product
SolarWinds Platform
Classifications
CWE-502, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 29, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 25, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2020.2.6 HF5 and prior versions <=2020.2.6 HF5
  2. Affected versionversion=2022.3 and prior versions <=2022.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

SolarWinds · SolarWinds Platformversion=2020.2.6 HF5 and prior versions <=2020.2.6 HF5; version=2022.3 and prior versions <=2022.3

Published CVSS scores

8.8SolarWindsCVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
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.

Technologies

Your stack

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Your stack

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