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CVE-2026-28318: SolarWinds Serv-U Uncontrolled Resource Consumption Vulnerability
SolarWinds Serv-U · in CISA KEV since 2026-06-05
2026-06-05added to KEV
2026-06-19federal remediation due date
40.01%EPSS exploit probability (30 days) 98.6th percentile
7.5 HIGHCVSS 3.1
Unknownknown ransomware use
1days from NVD publication to KEV
What it is
SolarWinds Serv-U contains an uncontrolled resource consumption vulnerability that allows specially crafted POST requests using the Content-Encoding: deflate header to crash the Serv-U service without authentication.
Required action (CISA)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
| CWE | CWE-400 |
|---|---|
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD published | 2026-06-04 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2026-28318.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.
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.