CVE-2026-28313

{"id": "CVE-2026-28313", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-28313", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-07-23T00:00:00+00:00"}}], "cvssMetricV31": [{"type": "Secondary", "source": "psirt@solarwinds.com", "cvssData": {"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"}, "impactScore": 6.0, "exploitabilityScore": 2.3}]}, "affected": [{"source": "psirt@solarwinds.com", "affectedData": [{"vendor": "SolarWinds", "product": "Serv-U", "versions": [{"status": "affected", "version": "15.5.4 HF1 and below"}], "platforms": ["Windows", "Linux"], "defaultStatus": "unaffected"}]}], "published": "2026-07-21T16:17:09.147", "references": [{"url": "https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_2026-3_release_notes.htm", "tags": ["Release Notes", "Vendor Advisory"], "source": "psirt@solarwinds.com"}, {"url": "https://https://www.solarwinds.com/trust-center/security-advisories/CVE-2026-28313", "tags": ["Vendor Advisory"], "source": "psirt@solarwinds.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "psirt@solarwinds.com", "description": [{"lang": "en", "value": "CWE-639"}]}], "descriptions": [{"lang": "en", "value": "SolarWinds Serv-U is affected by an insecure direct object reference (IDOR) vulnerability that can lead to SMTP hijacking leading to arbitrary account takeover. The impact is lower in Windows deployments."}], "lastModified": "2026-07-24T18:43:36.110", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:solarwinds:serv-u:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6CC041DF-D376-4F82-ABDD-61E3898A1C2A", "versionEndExcluding": "2026.3"}], "operator": "OR"}]}], "sourceIdentifier": "psirt@solarwinds.com"}