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Exploited vulnerability · CISA KEV

Is CVE-2025-40536 exploited? Yes: in CISA KEV since 12 Feb 2026

Gociux · SolarWinds Web Help Desk · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2025-40536, SolarWinds Web Help Desk Security Control Bypass Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 12 Feb 2026, 15 days after it was published. It affects SolarWinds Web Help Desk. If you run it, CISA's required action is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

exploitedYesCISA KEV · 12 Feb 2026
ransomwareNot knownno confirmed use
EPSStop 1%among the most likely CVEs to be exploited
severity8.1CVSS 3.1 · high
US federal due15 Feb 2026BOD 22-01 deadline

What it is

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

VendorSolarWinds (11 exploited CVEs in KEV)
ProductWeb Help Desk
VulnerabilitySolarWinds Web Help Desk Security Control Bypass Vulnerability
WeaknessCWE-693
Published28 Jan 2026
Added to KEV12 Feb 2026
Reported by (CNA)SolarWinds

What to do

  1. Check whether you run it. Look for Web Help Desk in your asset inventory, including appliances and cloud images. Stack check lists every exploited SolarWinds CVE at once.
  2. Apply the fix. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
  3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 28 Jan 2026.
  4. Get told next time. Email alerts when CISA adds a CVE for SolarWinds.

Other exploited CVEs in Web Help Desk

References

Questions

Is CVE-2025-40536 being exploited?

Yes. CISA added CVE-2025-40536 to the Known Exploited Vulnerabilities catalog on 12 Feb 2026, which means there is reliable evidence of exploitation in the wild.

Is CVE-2025-40536 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2025-40536?

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Check SolarWinds's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected Web Help Desk and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in February 2026 · SolarWinds scorecard · act-now radar.

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