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CVE-2021-35247: SolarWinds Serv-U Improper Input Validation Vulnerability
SolarWinds Serv-U · in CISA KEV since 2022-01-21
2022-01-21added to KEV
2022-02-04federal remediation due date
3.45%EPSS exploit probability (30 days) 88.5th percentile
5.3 MEDIUMCVSS 3.1
Unknownknown ransomware use
11days from NVD publication to KEV
What it is
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.
Required action (CISA)
Apply updates per vendor instructions.
| CWE | CWE-20 |
|---|---|
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| NVD published | 2022-01-10 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2021-35247.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.