{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-28321", "assignerOrgId": "49f11609-934d-4621-84e6-e02e032104d6", "state": "PUBLISHED", "assignerShortName": "SolarWinds", "dateReserved": "2026-02-26T14:46:41.520Z", "datePublished": "2026-07-21T15:39:46.561Z", "dateUpdated": "2026-07-24T03:55:48.019Z" }, "containers": { "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 broken access control vulnerability that could allow arbitrary file read and write, which can then be used to escalate privileges and execute code as root. A domain administrator access is required, and the impact is lower in Windows installations.
" } ], "value": "SolarWinds Serv-U is affected by a broken access control vulnerability that could allow arbitrary file read and write, which can then be used to escalate privileges and execute code as root. A domain administrator access is required, and the impact is lower in Windows installations." } ], "impacts": [ { "capecId": "CAPEC-1", "descriptions": [ { "lang": "en", "value": "CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs" } ] }, { "capecId": "CAPEC-126", "descriptions": [ { "lang": "en", "value": "CAPEC-126 Path Traversal" } ] }, { "capecId": "CAPEC-242", "descriptions": [ { "lang": "en", "value": "CAPEC-242 Code Injection" } ] } ], "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-284", "description": "CWE-284 Improper Access Control", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "orgId": "49f11609-934d-4621-84e6-e02e032104d6", "shortName": "SolarWinds", "dateUpdated": "2026-07-21T15:39:46.561Z" }, "references": [ { "tags": [ "vendor-advisory" ], "url": "https://www.solarwinds.com/trust-center/security-advisories/CVE-2026-28321" }, { "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.\n\n
" } ], "value": "SolarWinds recommends customers upgrade to Serv-U version 2026.3 as soon as is practical." } ], "source": { "discovery": "EXTERNAL" }, "title": "SolarWinds Serv-U Broken Access Control Vulnerability", "x_generator": { "engine": "Vulnogram 0.1.0-dev" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-07-23T00:00:00+00:00", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-28321" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-24T03:55:48.019Z" } } ] } }