CVE-2026-28318

{
  "id": "CVE-2026-28318",
  "sourceIdentifier": "[email protected]",
  "published": "2026-06-04T15:16:50.407",
  "lastModified": "2026-10-21T11:17:07.457",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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"
    },
    {
      "lang": "es",
      "value": "SolarWinds Serv-U es susceptible a solicitudes POST especialmente diseñadas que bloquean el servicio Serv-U sin autenticación utilizando Content-Encoding: deflate. Se proporcionan pasos de mitigación para proteger los entornos de los clientes en el Centro de Confianza de SolarWinds si no puede implementar la actualización."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "SolarWinds",
          "product": "Serv-U",
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows",
            "Linux"
          ],
          "versions": [
            {
              "version": "0",
              "lessThanOrEqual": "15.5.4",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-06-05T00:00:00+00:00",
          "id": "CVE-2026-28318",
          "options": [
            {
              "exploitation": "active"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "cisaExploitAdd": "2026-06-05",
  "cisaActionDue": "2026-06-19",
  "cisaRequiredAction": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.",
  "cisaVulnerabilityName": "SolarWinds Serv-U Uncontrolled Resource Consumption Vulnerability",
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:solarwinds:serv-u:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "15.5.4",
              "matchCriteriaId": "0879DDA2-3F57-41C7-A689-4B904310687E"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:solarwinds:serv-u:15.5.4:-:*:*:*:*:*:*",
              "matchCriteriaId": "04BC76FB-A18F-4D63-BF35-71E95E1447C0"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-5-4-hotfix-1_release_notes.htm",
      "source": "[email protected]",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "https://www.solarwinds.com/trust-center/security-advisories/CVE-2026-28318",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-28318",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "US Government Resource"
      ]
    }
  ]
}