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CVE-2025-26399— SolarWinds Web Help Desk Deserialization of Untrusted Data Privilege Escalation Vulnerability

Quick assessment

Affected
SolarWinds Web Help Desk
Exploitation
Confirmed exploitation in the wild; remediate immediately
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

SolarWinds Web Help Desk是美国SolarWinds公司的一套服务台和资产管理软件。该软件支持集中式知识库、IT资产管理、项目和任务管理等功能。 SolarWinds Web Help Desk存在代码问题漏洞，该漏洞源于未经验证的AjaxProxy反序列化问题，可能导致远程代码执行。

CVSS 9.8 · Critical KEV · Ransomware EPSS 89.50% · P100

Public Exploits 1

Nuclei · 1 CVE-2025-26399.yaml [template]

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
SolarWinds Web Help Desk 12.8.7 and below affected
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I. Basic Information for CVE-2025-26399

Vulnerability Information
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Vulnerability Title
SolarWinds Web Help Desk Deserialization of Untrusted Data Privilege Escalation Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
SolarWinds Web Help Desk was found to be susceptible to an unauthenticated AjaxProxy deserialization remote code execution vulnerability that, if exploited, would allow an attacker to run commands on the host machine. This vulnerability is a patch bypass of CVE-2024-28988, which in turn is a patch bypass of CVE-2024-28986.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
SolarWinds Web Help Desk 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SolarWinds Web Help Desk是美国SolarWinds公司的一套服务台和资产管理软件。该软件支持集中式知识库、IT资产管理、项目和任务管理等功能。 SolarWinds Web Help Desk存在代码问题漏洞，该漏洞源于未经验证的AjaxProxy反序列化问题，可能导致远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
SolarWinds Web Help Desk 12.8.7 and below -

II. Public POCs for CVE-2025-26399

# POC Description Source Link Shenlong Link
1 Detection for CVE-2025-26399 https://github.com/rxerium/CVE-2025-26399 POC Details
2 None https://github.com/h4xnz/CVE-2025-26399-Exploit POC Details
3 SolarWinds Web Help Desk contains an unauthenticated AjaxProxy deserialization remote code execution vulnerability, letting attackers run commands on the host machine without authentication, exploit requires no special privileges. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-26399.yaml POC Details
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III. Intelligence Information for CVE-2025-26399

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IV. Related Vulnerabilities

Same product: Web Help Desk
Same vendor: SolarWinds
Same weakness: CWE-502

V. Comments for CVE-2025-26399

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