SolarWinds Web Help Desk XML External Entity Injection (XXE) Vulnerability
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-611 and the CVSS impact.
Summary
SolarWinds Web Help Desk was reported to be affected by an XML External Entity Injection (XXE) vulnerability that could lead to information disclosure. A valid, low-privilege access is required unless the attacker had access to the local server to modify configuration files.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| SolarWinds | Web Help Desk | 12.8.6 and previous versions and later | — | No fix listed | CNA |
- Web Help Desk VendorSolarWinds Affected 12.8.6 and previous versions and later Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:solarwinds:web_help_desk:*:*:*:*:*:*:*:* | before 12.8.7 | Vulnerable | SolarWinds |
- cpe:2.3:a:solarwinds:web_help_desk:*:*:*:*:*:*:*:* Versions before 12.8.7 Vulnerable ·SolarWinds
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-26400
- 2026-10-03 Alias added: GHSA-gcmc-57w6-9878
References
More SolarWinds Web Help Desk vulnerabilities
- TI-2025-27044 SolarWinds Web Help Desk Deserialization of Untrusted Data Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2025-27034 SolarWinds Web Help Desk Security Control Bypass Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2025-19358 SolarWinds Web Help Desk Deserialization of Untrusted Data Privilege Escalation Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2024-19175 SolarWinds Web Help Desk Java Deserialization Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2024-19176 SolarWinds Web Help Desk Hardcoded Credential Vulnerability KEVCVSS 3.1CRITICAL 9.1
- TI-2025-27046 SolarWinds Web Help Desk Deserialization of Untrusted Data Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
Sources
- CVE-2025-26400 · CVE Program
- CVE-2025-26400 · NVD
- FIRST EPSS
- GHSA-gcmc-57w6-9878 · GitHub Advisory Database · CC BY 4.0
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