Vulnerability Intelligence Report
Serv-U Remote Memory Escape Vulnerability
CVE-2021-35211
Microsoft discovered a remote code execution (RCE) vulnerability in the SolarWinds Serv-U product utilizing a Remote Memory Escape Vulnerability. If exploited, a threat actor may be able to gain privileged access to the machine hosting Serv-U Only. SolarWinds Serv-U Managed File Transfer and Serv-U Secure FTP for Windows before 15.2.3 HF2 are affected by this vulnerability.
CISA KEV
Nuclei Template
SSVC: Active Exploitation
CVSS Base Score
9.0
CRITICAL
Exploitability:2.3
Impact Score:6.1
EPSS Probability:91.16%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-787 ↗CWE-787 Out-of-bounds Write
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| SolarWinds | Serv-U Managed File Transfer Server and Serv-U Secured FTP | SolarWinds Serv-U < 15.2.3 HF1 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
CISA KEV
ACTIVE IN CATALOG
Nuclei Template
SCANNER AVAILABLE
EPSS Score
91.160%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | SolarWinds · Vendor · USA |
| Reserved | 2021-06-22T00:00:00 |
| Published | 2021-07-14T20:55:25 |
| Patch Date | 2021-07-13 |
| Last Updated | 2025-10-21T23:25:40 |
Community Chatter & Buzz