CVE-2021-35247
CISA KEVPublished January 21, 2022 · Updated April 3, 2026
high
Official Description+
SolarWinds Serv-U versions 15.2.5 and earlier contain an improper input validation vulnerability that allows attackers to build and send queries without sanitization.
Affected Products
| Vendor | Product |
|---|---|
| SolarWinds | Serv-U |
Patch Status
Patch by 2022-02-04
Recommended Actions
- Check if your systems use any of the affected products listed above.
- Apply vendor patches immediately if available.
- This vulnerability is in CISA's Known Exploited Vulnerabilities catalog — prioritize remediation.
- Monitor vendor advisories for updates and additional mitigations.
- Review logs for indicators of compromise related to CVE-2021-35247.