CVE-2021-35211
CriticalActively exploited (CISA KEV)Known to be used in ransomware campaigns
Description
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.
SeverityCritical
CVSS9.0
Exploit probability—
Product
SolarWinds Serv-U
PublishedJul 14, 2021
First seenJul 14, 2021
Added to KEVNov 3, 2021
Weakness typeCWE-787Out-of-bounds write
How to fix
CISA required action
Apply updates per vendor instructions.
CISA due date: Nov 17, 2021Update
- solarwinds serv-u15.2.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| solarwinds serv-u | v < 15.2.3, 15.2.3 | 15.2.3 |
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