Vendor scorecard
CISA lists 11 SolarWinds vulnerabilities as exploited in the wild, 4 of them added in the last 12 months (up from 0 in the 12 months before). 2 (18%) are known to be used in ransomware campaigns. For entries added in the last two years, the median time from CVE publication to the KEV listing was 10 days. Most affected: Web Help Desk (5), Serv-U (4), Orion (1).
| Product | KEV entries |
|---|---|
| Web Help Desk | 5 |
| Serv-U | 4 |
| Orion | 1 |
| Virtualization Manager | 1 |
| CVE | Vulnerability | Added |
|---|---|---|
| CVE-2026-28318 | SolarWinds Serv-U Uncontrolled Resource Consumption VulnerabilityServ-U | |
| CVE-2025-26399 | SolarWinds Web Help Desk Deserialization of Untrusted Data VulnerabilityRANSOMWAREWeb Help Desk | |
| CVE-2025-40536 | SolarWinds Web Help Desk Security Control Bypass VulnerabilityWeb Help Desk | |
| CVE-2025-40551 | SolarWinds Web Help Desk Deserialization of Untrusted Data VulnerabilityWeb Help Desk | |
| CVE-2024-28987 | SolarWinds Web Help Desk Hardcoded Credential VulnerabilityWeb Help Desk | |
| CVE-2024-28986 | SolarWinds Web Help Desk Deserialization of Untrusted Data VulnerabilityWeb Help Desk | |
| CVE-2024-28995 | SolarWinds Serv-U Path Traversal Vulnerability Serv-U | |
| CVE-2021-35247 | SolarWinds Serv-U Improper Input Validation VulnerabilityServ-U | |
| CVE-2021-35211 | SolarWinds Serv-U Remote Code Execution VulnerabilityRANSOMWAREServ-U | |
| CVE-2020-10148 | SolarWinds Orion Authentication Bypass VulnerabilityOrion | |
| CVE-2016-3643 | SolarWinds Virtualization Manager Privilege Escalation VulnerabilityVirtualization Manager |
Get an email when CISA adds the next SolarWinds CVE.
How to read this: CISA KEV lists vulnerabilities with reliable evidence of exploitation; a vendor with many entries is often one with a large, internet-facing install base, not necessarily worse engineering. "Publication → KEV" is the median number of days between the CVE's publication and its addition to KEV, for entries added in the last 24 months (4 entries); it is an upper bound on how long defenders had, since exploitation usually starts before the listing. Under NIS2 article 21(2)(d), supplier security is part of your risk management; this page is a starting point for that review. Compare vendors on the scorecard index.
We assess supplier security for NIS2 and DORA, from exploited-CVE history and patch response to contract clauses and evidence packs.
Get in touch →