CVE-2024-28991

SYSTEM code execution via unsafe JSON deserialization

Published Sep 12, 2024 · Updated Sep 17, 2024

Deserialization of untrusted data in SolarWinds Access Rights Manager 2024.3 and earlier allows remote authenticated users to execute code. The JsonSerializationBinder class fails to validate user-supplied data before deserializing it. Although the service normally requires authentication, ZDI reports that authentication can be bypassed; successful attacks run code with SYSTEM privileges.

CVSS severity9.0
Critical
EPSS probability3.08%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization of untrusted data in SolarWinds Access Rights Manager 2024.3 and earlier allows remote authenticated users to execute code. The JsonSerializationBinder class fails to validate user-supplied data before deserializing it. Although the service normally requires authentication, ZDI reports that authentication can be bypassed; successful attacks run code with SYSTEM privileges.

The record

CVE
CVE-2024-28991
Published
Sep 12, 2024
Updated
Sep 17, 2024
Vendor
SolarWinds
Product
SolarWinds Access Rights Manager
Classifications
CWE-502, T1210
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 12, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2024Record 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=0 <=2024.3
  2. Affected versionversion=previous versions <=2024.3

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

SolarWinds · SolarWinds Access Rights Managerversion=0 <=2024.3; version=previous versions <=2024.3

Published CVSS scores

8.0NISTCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9.0SolarWindsCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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