CVE-2026-24303 (GCVE-0-2026-24303)
Vulnerability from cvelistv5 – Published: 2026-04-23 21:37 – Updated: 2026-04-24 12:51 Exclusively Hosted Service
VLAI?
Title
Microsoft Partner Center Elevation of Privilege Vulnerability
Summary
Improper access control in Microsoft Partner Center allows an authorized attacker to elevate privileges over a network.
Severity ?
9.6 (Critical)
CWE
- CWE-284 - Improper Access Control
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Microsoft | Microsoft Partner Center |
Affected:
-
|
Date Public ?
2026-04-23 14:00
{
"containers": {
"cna": {
"affected": [
{
"product": "Microsoft Partner Center",
"vendor": "Microsoft",
"versions": [
{
"status": "affected",
"version": "-"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:microsoft:partner_center:*:*:*:*:*:*:*:*",
"versionStartIncluding": "-",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"datePublic": "2026-04-23T14:00:00.000Z",
"descriptions": [
{
"lang": "en-US",
"value": "Improper access control in Microsoft Partner Center allows an authorized attacker to elevate privileges over a network."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 9.6,
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en-US",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-284",
"description": "CWE-284: Improper Access Control",
"lang": "en-US",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-24T12:51:31.326Z",
"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"shortName": "microsoft"
},
"references": [
{
"name": "Microsoft Partner Center Elevation of Privilege Vulnerability",
"tags": [
"vendor-advisory",
"patch"
],
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-24303"
}
],
"tags": [
"exclusively-hosted-service"
],
"title": "Microsoft Partner Center Elevation of Privilege Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"assignerShortName": "microsoft",
"cveId": "CVE-2026-24303",
"datePublished": "2026-04-23T21:37:41.267Z",
"dateReserved": "2026-01-21T21:28:02.969Z",
"dateUpdated": "2026-04-24T12:51:31.326Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-24303",
"date": "2026-04-24",
"epss": "0.00044",
"percentile": "0.13512"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2026-24303\",\"sourceIdentifier\":\"secure@microsoft.com\",\"published\":\"2026-04-23T22:16:22.483\",\"lastModified\":\"2026-04-24T14:41:16.553\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[{\"sourceIdentifier\":\"secure@microsoft.com\",\"tags\":[\"exclusively-hosted-service\"]}],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Improper access control in Microsoft Partner Center allows an authorized attacker to elevate privileges over a network.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"secure@microsoft.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N\",\"baseScore\":9.6,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.1,\"impactScore\":5.8}]},\"weaknesses\":[{\"source\":\"secure@microsoft.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-284\"}]}],\"references\":[{\"url\":\"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-24303\",\"source\":\"secure@microsoft.com\"}]}}"
}
}
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Sightings
| Author | Source | Type | Date |
|---|
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.
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