CVE-2026-28312 (GCVE-0-2026-28312)

Vulnerability from cvelistv5 – Published: 2026-07-21 15:37 – Updated: 2026-07-22 18:55
VLAI
Title
SolarWinds Serv-U Privilege Escalation Vulnerability
Summary
SolarWinds Serv-U is affected by a privilege escalation vulnerability. This would elevate a group’s access to system administrator and allow code execution as root. The impact is lower in Windows deployments.
Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
4.7 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
SolarWinds Serv-U Affected: 15.5.4 HF1 and below
Create a notification for this product.
Credits
Intigriti Bug Bounty Program
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-28312",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-22T18:55:44.817470Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-22T18:55:54.782Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows",
            "Linux"
          ],
          "product": "Serv-U",
          "vendor": "SolarWinds",
          "versions": [
            {
              "status": "affected",
              "version": "15.5.4 HF1 and below"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "user": "00000000-0000-4000-9000-000000000000",
          "value": "Intigriti Bug Bounty Program"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "SolarWinds Serv-U is affected by a privilege escalation vulnerability. This would elevate a group\u2019s access to system administrator and allow code execution as root. The impact is lower in Windows deployments."
            }
          ],
          "value": "SolarWinds Serv-U is affected by a privilege escalation vulnerability. This would elevate a group\u2019s access to system administrator and allow code execution as root. The impact is lower in Windows deployments."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-233",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-233 Privilege Escalation"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "Serv-U Linux"
            }
          ]
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 4.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "Serv-U Windows"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-285",
              "description": "CWE-285 Improper Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-21T15:37:45.518Z",
        "orgId": "49f11609-934d-4621-84e6-e02e032104d6",
        "shortName": "SolarWinds"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://https://www.solarwinds.com/trust-center/security-advisories/CVE-2026-28312"
        },
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_2026-3_release_notes.htm"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "SolarWinds recommends customers upgrade to Serv-U version 2026.3 as soon as is practical."
            }
          ],
          "value": "SolarWinds recommends customers upgrade to Serv-U version 2026.3 as soon as is practical."
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "SolarWinds Serv-U Privilege Escalation Vulnerability",
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "49f11609-934d-4621-84e6-e02e032104d6",
    "assignerShortName": "SolarWinds",
    "cveId": "CVE-2026-28312",
    "datePublished": "2026-07-21T15:37:45.518Z",
    "dateReserved": "2026-02-26T14:28:17.157Z",
    "dateUpdated": "2026-07-22T18:55:54.782Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-28312",
      "date": "2026-07-22",
      "epss": "0.00401",
      "percentile": "0.32653"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-28312\",\"sourceIdentifier\":\"psirt@solarwinds.com\",\"published\":\"2026-07-21T16:17:09.000\",\"lastModified\":\"2026-07-21T18:35:27.267\",\"vulnStatus\":\"Undergoing Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"SolarWinds Serv-U is affected by a privilege escalation vulnerability. This would elevate a group\u2019s access to system administrator and allow code execution as root. The impact is lower in Windows deployments.\"}],\"affected\":[{\"source\":\"psirt@solarwinds.com\",\"affectedData\":[{\"vendor\":\"SolarWinds\",\"product\":\"Serv-U\",\"defaultStatus\":\"unaffected\",\"platforms\":[\"Windows\",\"Linux\"],\"versions\":[{\"version\":\"15.5.4 HF1 and below\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"psirt@solarwinds.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H\",\"baseScore\":9.1,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.3,\"impactScore\":6.0}]},\"weaknesses\":[{\"source\":\"psirt@solarwinds.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-285\"}]}],\"references\":[{\"url\":\"https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_2026-3_release_notes.htm\",\"source\":\"psirt@solarwinds.com\"},{\"url\":\"https://https://www.solarwinds.com/trust-center/security-advisories/CVE-2026-28312\",\"source\":\"psirt@solarwinds.com\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-28312\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-07-22T18:55:44.817470Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-07-22T18:55:49.850Z\"}}], \"cna\": {\"title\": \"SolarWinds Serv-U Privilege Escalation Vulnerability\", \"source\": {\"discovery\": \"EXTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"user\": \"00000000-0000-4000-9000-000000000000\", \"value\": \"Intigriti Bug Bounty Program\"}], \"impacts\": [{\"capecId\": \"CAPEC-233\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-233 Privilege Escalation\"}]}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 9.1, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"HIGH\", \"confidentialityImpact\": \"HIGH\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"Serv-U Linux\"}]}, {\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 4.7, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L\", \"integrityImpact\": \"LOW\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"LOW\", \"privilegesRequired\": \"HIGH\", \"confidentialityImpact\": \"LOW\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"Serv-U Windows\"}]}], \"affected\": [{\"vendor\": \"SolarWinds\", \"product\": \"Serv-U\", \"versions\": [{\"status\": \"affected\", \"version\": \"15.5.4 HF1 and below\"}], \"platforms\": [\"Windows\", \"Linux\"], \"defaultStatus\": \"unaffected\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"SolarWinds recommends customers upgrade to Serv-U version 2026.3 as soon as is practical.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"SolarWinds recommends customers upgrade to Serv-U version 2026.3 as soon as is practical.\", \"base64\": false}]}], \"references\": [{\"url\": \"https://https://www.solarwinds.com/trust-center/security-advisories/CVE-2026-28312\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_2026-3_release_notes.htm\", \"tags\": [\"release-notes\"]}], \"x_generator\": {\"engine\": \"Vulnogram 0.1.0-dev\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"SolarWinds Serv-U is affected by a privilege escalation vulnerability. This would elevate a group\\u2019s access to system administrator and allow code execution as root. The impact is lower in Windows deployments.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"SolarWinds Serv-U is affected by a privilege escalation vulnerability. This would elevate a group\\u2019s access to system administrator and allow code execution as root. The impact is lower in Windows deployments.\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-285\", \"description\": \"CWE-285 Improper Authorization\"}]}], \"providerMetadata\": {\"orgId\": \"49f11609-934d-4621-84e6-e02e032104d6\", \"shortName\": \"SolarWinds\", \"dateUpdated\": \"2026-07-21T15:37:45.518Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-28312\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-07-22T18:55:54.782Z\", \"dateReserved\": \"2026-02-26T14:28:17.157Z\", \"assignerOrgId\": \"49f11609-934d-4621-84e6-e02e032104d6\", \"datePublished\": \"2026-07-21T15:37:45.518Z\", \"assignerShortName\": \"SolarWinds\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.