CVE-2021-35211
SolarWinds Serv-U Remote Code Execution Vulnerability
n/a
CVSS
91.2%
EPSS (exploit prob.)
99.8%
EPSS percentile
Yes
Actively exploited
Yes
Ransomware use
2021-11-03
Added
Summary
SolarWinds Serv-U contains an unspecified memory escape vulnerability which can allow for remote code execution.
Affected software
Vendor: SolarWinds · Product: Serv-U
Weakness types (CWE):
CWE-787
What to do
This vulnerability appears in CISA's Known Exploited Vulnerabilities catalog, meaning it is being exploited in the wild. Prioritize patching affected systems and verify exposure across your estate.
Related vulnerabilities in SolarWinds
| CVE | Name | EPSS | Exploited |
|---|---|---|---|
| CVE-2024-28995 | SolarWinds Serv-U Path Traversal Vulnerability | 99.6% | Yes |
| CVE-2024-28987 | SolarWinds Web Help Desk Hardcoded Credential Vulnerability | 93.3% | Yes |
| CVE-2020-10148 | SolarWinds Orion Authentication Bypass Vulnerability | 92.0% | Yes |
| CVE-2025-26399 | SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability | 88.3% | Yes |
| CVE-2024-28986 | SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability | 84.6% | Yes |
| CVE-2025-40551 | SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability | 83.6% | Yes |
| CVE-2025-40536 | SolarWinds Web Help Desk Security Control Bypass Vulnerability | 71.5% | Yes |
| CVE-2026-28318 | SolarWinds Serv-U Uncontrolled Resource Consumption Vulnerability | 8.4% | Yes |
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