CVE-2026-28313
Full vulnerability record from the local CVENow database.
Description
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.
Severity
CRITICAL
CVSS score
9.1
(v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-07-21 16:17:09.147000
Last modified
2026-10-24 20:10:00.137000
View original CVE JSON
{
"id": "CVE-2026-28313",
"sourceIdentifier": "[email protected]",
"published": "2026-07-21T16:17:09.147",
"lastModified": "2026-10-24T20:10:00.137",
"vulnStatus": "Analyzed",
"cveTags": [],
"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."
},
{
"lang": "es",
"value": "SolarWinds Serv-U está afectado por una vulnerabilidad de referencia directa a objeto insegura (IDOR) que puede conducir al secuestro de SMTP, lo que lleva a la toma de control arbitraria de cuentas. El impacto es menor en implementaciones de Windows."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "SolarWinds",
"product": "Serv-U",
"defaultStatus": "unaffected",
"platforms": [
"Windows",
"Linux"
],
"versions": [
{
"version": "15.5.4 HF1 and below",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"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
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-07-23T00:00:00+00:00",
"id": "CVE-2026-28313",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-639"
}
]
}
],
"configurations": [
{
"nodes": [
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"negate": false,
"cpeMatch": [
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"criteria": "cpe:2.3:a:solarwinds:serv-u:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2026.3",
"matchCriteriaId": "6CC041DF-D376-4F82-ABDD-61E3898A1C2A"
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],
"references": [
{
"url": "https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_2026-3_release_notes.htm",
"source": "[email protected]",
"tags": [
"Release Notes",
"Vendor Advisory"
]
},
{
"url": "https://https://www.solarwinds.com/trust-center/security-advisories/CVE-2026-28313",
"source": "[email protected]",
"tags": [
"Vendor Advisory"
]
}
]
}