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High

SolarWinds Serv-U Unauthenticated Denial of Service Vulnerability

Type: advisorySource: Official CVE ListKnown exploited1 source record

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

Announced Source revision 1
Original source ↗

CVE-2026-28318

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-28318

Serv-U

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "SolarWinds",
    "product": "Serv-U",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "versionType": "custom",
        "lessThanOrEqual": "15.5.4"
      }
    ],
    "platforms": [
      "Windows",
      "Linux"
    ],
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-28318

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Linked CVE context

These ratings describe the referenced vulnerabilities and products. They are not a severity rating for every application using this dependency.

CVE-2026-28318 · Unrated

Serv-U · Known exploited (CISA KEV)

Event
#45806 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement