CVE-2025-40536: SolarWinds Web Help Desk Security Control Bypass Vulnerability

CISA Known Exploited Vulnerabilities

Name

SolarWinds Web Help Desk Security Control Bypass Vulnerability

Vendor

SolarWinds

Product

Web Help Desk

Added to the catalog

2026-02-12

Due date for US federal agencies

2026-02-15

Weaknesses

CWE-693

Catalog version

2026.10.30

SolarWinds Web Help Desk contains a security control bypass vulnerability that could allow an unauthenticated attacker to gain access to certain restricted functionality.

Required action (CISA)

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Ransomware use: CISA does not mark known use of this vulnerability in ransomware campaigns.

Links in CISA's notes

• https://documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_2026-1_release_notes.htm
• https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40536
• https://nvd.nist.gov/vuln/detail/CVE-2025-40536

Read on 2026-11-02T23:39:54.475Z under licence cisa-kev-cc0@b0067899 from https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

NVD analysis

Status

Analyzed

Published

2026-01-28T08:16:01.893

Last modified

2026-06-17T09:21:43.410

Weaknesses

CWE-693

SolarWinds Web Help Desk was found to be susceptible to a security control bypass vulnerability that if exploited, could allow an unauthenticated attacker to gain access to certain restricted functionality.

References

• https://documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_2026-1_release_notes.htm (Release Notes)
• https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40536 (Vendor Advisory)
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-40536 (US Government Resource)
• https://www.huntress.com/blog/active-exploitation-solarwinds-web-help-desk-cve-2025-26399 (Third Party Advisory)

This product uses the NVD API but is not endorsed or certified by the NVD.

Read on 2026-11-02T23:42:22.836Z under licence nvd-api-terms-of-use@ff2a5288 from https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2025-40536

CVE record

Title (CNA)

SolarWinds Web Help Desk Security Control Bypass Vulnerability

Assigner

SolarWinds

State

PUBLISHED

Published

2026-01-28T07:30:09.503Z

Updated

2026-02-26T15:04:49.700Z

Problem types

CWE-693 Protection Mechanism Failure

SolarWinds Web Help Desk was found to be susceptible to a security control bypass vulnerability that if exploited, could allow an unauthenticated attacker to gain access to certain restricted functionality.

References

• https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40536
• https://documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_2026-1_release_notes.htm

Read on 2026-11-03T02:16:28.705Z under licence cve-terms-of-use@81bfa2f3 from https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2025/40xxx/CVE-2025-40536.json

Detection rules (SigmaHQ)

SigmaHQ rules whose own tags name this CVE. Each rule page shows the rule as its author published it.

• Suspicious Child Process of SolarWinds WebHelpDesk (status experimental, level high)

Defensive techniques (MITRE D3FEND)

D3FEND maps these defensive techniques to the weakness (CWE) that NVD lists for this CVE, through the digital artifacts the weakness affects. D3FEND does not say they stop this vulnerability.

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