SolarWinds Web Help Desk known exploited vulnerabilities
We track 5 CVEs in SolarWinds Web Help Desk. All of them are on CISA's Known Exploited Vulnerabilities catalog, meaning CISA has evidence of exploitation in the wild (listed 2024–2026). CISA flags 1 of them as used in ransomware campaigns. The most recent is CVE-2025-26399, added to KEV on .
- CVEs tracked
- 5
- On CISA KEV
- 5
- Ransomware use
- 1
- Rated critical
- 4
Every SolarWinds Web Help Desk CVE we track
| CVE / Vulnerability | Severity | CVSS | EPSS | Added to KEV | Patch by |
|---|---|---|---|---|---|
| CVE-2025-26399 SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerabilityransomware use | [ CRITICAL ] | 9.8 | 90.1% | ||
| CVE-2025-40536 SolarWinds Web Help Desk Security Control Bypass Vulnerability | [ HIGH ] | 8.1 | 73.6% | ||
| CVE-2025-40551 SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability | [ CRITICAL ] | 9.8 | 84.2% | ||
| CVE-2024-28987 SolarWinds Web Help Desk Hardcoded Credential Vulnerability | [ CRITICAL ] | 9.1 | 93.3% | ||
| CVE-2024-28986 SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability | [ CRITICAL ] | 9.8 | 84.6% |
Sorted by date added to KEV. Severity and CVSS as stated by NVD or the vendor; EPSS from FIRST.org. "Patch by" is CISA's BOD 22-01 deadline for US federal agencies, a useful priority signal for everyone else. Machine-readable: /api/v1/vendors/solarwinds.json.
Other SolarWinds products
Every row links to its CVE record with the CISA required action, catalog coverage and primary sources. We describe impact and remediation only; no exploit code. See the full KEV tracker or compare KEV catalogs.