CVE entry · CVE-2025-40536
CVE-2025-40536: SolarWinds Web Help Desk Security Control Bypass Vulnerability
SolarWinds Web Help Desk contains a security control bypass vulnerability that could allow an unauthenticated attacker to gain access to certain restricted functionality.
- Actively exploited: added to CISA’s KEV catalog on February 12, 2026.
- Use by ransomware: not established so far.
- Remediation deadline for US federal agencies: February 15, 2026.
Description from CISA’s KEV catalog.
What to do
- Check whether your estate includes SolarWinds Web Help Desk, including internet-facing devices.
- Apply the vendor’s patch or mitigations (references below). Failing that, isolate the product or stop using it, as CISA requires of US federal agencies.
- An exploited vulnerability has often been used before it was fixed: look for signs of compromise, especially on internet-facing devices.
References
- Vendor advisory or reference cited by CISA (documentation.solarwinds.com)
- Vendor advisory or reference cited by CISA (www.solarwinds.com)
- NVD entry (NIST)
- CISA KEV catalog