CVE-2021-35223
8.5 · HIGHOverview
CVE-2021-35223 is a high-severity vulnerability affecting solarwinds serv-u. It was published on August 31, 2021 and has a CVSS 3.1 base score of 8.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
The Serv-U File Server allows for events such as user login failures to be audited by executing a command. This command can be supplied with parameters that can take the form of user string variables, allowing remote code execution.
Remediation
Check the references section for vendor advisories and patches from solarwinds. Update serv-u to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| solarwinds | serv-u | >= 0, < 15.2.4 | Affected |
References
Frequently Asked Questions
What is CVE-2021-35223?
CVE-2021-35223 is a high-severity vulnerability affecting solarwinds serv-u. It was published on August 31, 2021 and has a CVSS 3.1 base score of 8.5 (HIGH).
How severe is CVE-2021-35223?
This vulnerability has a CVSS 3.1 base score of 8.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2021-35223?
Check the references section for vendor advisories and patches from solarwinds. Update serv-u to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-35223?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-35223 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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