SolarWinds Serv-U Unauthenticated Denial of Service Vulnerability
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| SolarWinds | Serv-U | unaffected |
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Configuration 1 [-]
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No data.
| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Solarwinds | Serv-u |
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Vendor Solution
Upgrade to SolarWinds Serv-U 15.5.4 Hotfix 1. Use the mitigation steps until the upgrade is possible.
Vendor Workaround
Block any POST requests containing 'Content-Encoding: deflate'. This function is not required for SolarWinds Serv-U.
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is in the KEV database since June 5, 2026.
Exploit prediction score: 48.0% (48.001% probability within 30 days)
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| References |
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| Metrics |
ssvc
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ssvc
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| Metrics |
kev
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| CPEs | cpe:2.3:a:solarwinds:serv-u:*:*:*:*:*:*:*:* cpe:2.3:a:solarwinds:serv-u:15.5.4:-:*:*:*:*:*:* |
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| First Time appeared |
Solarwinds
Solarwinds serv-u |
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| Vendors & Products |
Solarwinds
Solarwinds serv-u |
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| Metrics |
ssvc
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| Description | SolarWinds Serv-U is susceptible to specially crafted POST requests that crash the Serv-U service without authentication using Content-Encoding: deflate. Mitigation steps are provided to secure customer environments in the SolarWinds Trust Center if you are unable to deploy the update | |
| Title | SolarWinds Serv-U Unauthenticated Denial of Service Vulnerability | |
| Weaknesses | CWE-400 | |
| References |
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| Metrics |
cvssV3_1
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