Vulnerability Details CVE-2026-28318
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
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 19.7%
CVSS Severity
CVSS v3 Score 7.5
Proposed Action
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.
Ransomware Campaign
Unknown
References
Products affected by CVE-2026-28318
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cpe:2.3:a:solarwinds:serv-u:-
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cpe:2.3:a:solarwinds:serv-u:15.1
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cpe:2.3:a:solarwinds:serv-u:15.1.1
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cpe:2.3:a:solarwinds:serv-u:15.1.2
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cpe:2.3:a:solarwinds:serv-u:15.1.3
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cpe:2.3:a:solarwinds:serv-u:15.1.4
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cpe:2.3:a:solarwinds:serv-u:15.1.5
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cpe:2.3:a:solarwinds:serv-u:15.1.6
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cpe:2.3:a:solarwinds:serv-u:15.1.7
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cpe:2.3:a:solarwinds:serv-u:15.2.1
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cpe:2.3:a:solarwinds:serv-u:15.2.2
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cpe:2.3:a:solarwinds:serv-u:15.2.3
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cpe:2.3:a:solarwinds:serv-u:15.2.4
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cpe:2.3:a:solarwinds:serv-u:15.2.5
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cpe:2.3:a:solarwinds:serv-u:15.3
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cpe:2.3:a:solarwinds:serv-u:15.3.0
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cpe:2.3:a:solarwinds:serv-u:15.3.1
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cpe:2.3:a:solarwinds:serv-u:15.3.2
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cpe:2.3:a:solarwinds:serv-u:15.4.0
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cpe:2.3:a:solarwinds:serv-u:15.4.2
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cpe:2.3:a:solarwinds:serv-u:15.4.2.3
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cpe:2.3:a:solarwinds:serv-u:15.5
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cpe:2.3:a:solarwinds:serv-u:15.5.4