CVE-2023-23397 (GCVE-0-2023-23397)
Vulnerability from cvelistv5
Published
2023-03-14 16:55
Modified
2025-10-21 23:15
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-20 - Improper Input Validation
Summary
Microsoft Outlook Elevation of Privilege Vulnerability
References
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft Office LTSC 2021 |
Version: 16.0.1 < https://aka.ms/OfficeSecurityReleases |
||||||||||||||||||||||
|
||||||||||||||||||||||||
CISA Known Exploited Vulnerability
Data from the CISA Known Exploited Vulnerabilities Catalog
Date added: 2023-03-14
Due date: 2023-04-04
Required action: Apply updates per vendor instructions.
Used in ransomware: Unknown
Notes: https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-23397, https://msrc.microsoft.com/blog/2023/03/microsoft-mitigates-outlook-elevation-of-privilege-vulnerability/, ; https://nvd.nist.gov/vuln/detail/CVE-2023-23397
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T10:28:40.887Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"name": "Microsoft Outlook Elevation of Privilege Vulnerability",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-23397"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-23397",
"options": [
{
"Exploitation": "active"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-03-21T18:47:26.732010Z",
"version": "2.0.3"
},
"type": "ssvc"
}
},
{
"other": {
"content": {
"dateAdded": "2023-03-14",
"reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-23397"
},
"type": "kev"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-10-21T23:15:23.783Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"government-resource"
],
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-23397"
}
],
"timeline": [
{
"lang": "en",
"time": "2023-03-14T00:00:00+00:00",
"value": "CVE-2023-23397 added to CISA KEV"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"platforms": [
"32-bit Systems",
"x64-based Systems"
],
"product": "Microsoft Office LTSC 2021",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "https://aka.ms/OfficeSecurityReleases",
"status": "affected",
"version": "16.0.1",
"versionType": "custom"
}
]
},
{
"platforms": [
"32-bit Systems",
"x64-based Systems"
],
"product": "Microsoft Outlook 2016",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "16.0.5387.1000",
"status": "affected",
"version": "16.0.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems",
"32-bit Systems"
],
"product": "Microsoft 365 Apps for Enterprise",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "https://aka.ms/OfficeSecurityReleases",
"status": "affected",
"version": "16.0.1",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems",
"32-bit Systems"
],
"product": "Microsoft Office 2019",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "https://aka.ms/OfficeSecurityReleases",
"status": "affected",
"version": "19.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems",
"ARM64-based Systems",
"32-bit Systems"
],
"product": "Microsoft Outlook 2013 Service Pack 1",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "15.0.5537.1000",
"status": "affected",
"version": "15.0.0.0",
"versionType": "custom"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:microsoft:office_long_term_servicing_channel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "https://aka.ms/OfficeSecurityReleases",
"versionStartIncluding": "16.0.1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:outlook:*:*:*:*:*:x86:*:*",
"versionEndExcluding": "16.0.5387.1000",
"versionStartIncluding": "16.0.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:365_apps:*:*:*:*:enterprise:*:*:*",
"versionEndExcluding": "https://aka.ms/OfficeSecurityReleases",
"versionStartIncluding": "16.0.1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:office:*:*:*:*:*:*:*:*",
"versionEndExcluding": "https://aka.ms/OfficeSecurityReleases",
"versionStartIncluding": "19.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:outlook:*:*:*:*:*:*:x64:*",
"versionEndExcluding": "15.0.5537.1000",
"versionStartIncluding": "15.0.0.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"datePublic": "2023-03-14T07:00:00.000Z",
"descriptions": [
{
"lang": "en-US",
"value": "Microsoft Outlook Elevation of Privilege Vulnerability"
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en-US",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-20",
"description": "CWE-20: Improper Input Validation",
"lang": "en-US",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-01-01T00:48:07.606Z",
"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"shortName": "microsoft"
},
"references": [
{
"name": "Microsoft Outlook Elevation of Privilege Vulnerability",
"tags": [
"vendor-advisory"
],
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-23397"
}
],
"title": "Microsoft Outlook Elevation of Privilege Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"assignerShortName": "microsoft",
"cveId": "CVE-2023-23397",
"datePublished": "2023-03-14T16:55:28.168Z",
"dateReserved": "2023-01-11T22:08:03.137Z",
"dateUpdated": "2025-10-21T23:15:23.783Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"cisa_known_exploited": {
"cveID": "CVE-2023-23397",
"cwes": "[\"CWE-294\"]",
"dateAdded": "2023-03-14",
"dueDate": "2023-04-04",
"knownRansomwareCampaignUse": "Unknown",
"notes": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-23397, https://msrc.microsoft.com/blog/2023/03/microsoft-mitigates-outlook-elevation-of-privilege-vulnerability/, ; https://nvd.nist.gov/vuln/detail/CVE-2023-23397",
"product": "Office",
"requiredAction": "Apply updates per vendor instructions.",
"shortDescription": "Microsoft Office Outlook contains a privilege escalation vulnerability that allows for a NTLM Relay attack against another service to authenticate as the user.",
"vendorProject": "Microsoft",
"vulnerabilityName": "Microsoft Office Outlook Privilege Escalation Vulnerability"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2023-23397\",\"sourceIdentifier\":\"secure@microsoft.com\",\"published\":\"2023-03-14T17:15:13.263\",\"lastModified\":\"2025-10-22T00:18:15.660\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Microsoft Outlook Elevation of Privilege Vulnerability\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"secure@microsoft.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}]},\"cisaExploitAdd\":\"2023-03-14\",\"cisaActionDue\":\"2023-04-04\",\"cisaRequiredAction\":\"Apply updates per vendor instructions.\",\"cisaVulnerabilityName\":\"Microsoft Office Outlook Privilege Escalation Vulnerability\",\"weaknesses\":[{\"source\":\"secure@microsoft.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-20\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-294\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:*:*\",\"matchCriteriaId\":\"40C15EDD-98D4-4D06-BA06-21AE0F33C72D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FF177984-A906-43FA-BF60-298133FBBD6B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"0B3EF1E5-4757-4CFA-AE72-6BA876D3C9FD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:microsoft:outlook:2013:sp1:*:*:-:*:*:*\",\"matchCriteriaId\":\"8D513A61-6427-4F85-AADF-99D6F223AF2B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:microsoft:outlook:2013:sp1:*:*:rt:*:*:*\",\"matchCriteriaId\":\"DDA98A76-D0D1-4BFA-BEAC-1C2313F7B859\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:microsoft:outlook:2016:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E2B1657C-0FF4-461A-BE2A-641275C4B0A0\"}]}]}],\"references\":[{\"url\":\"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-23397\",\"source\":\"secure@microsoft.com\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-23397\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-23397\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\"}]}}",
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-23397\", \"name\": \"Microsoft Outlook Elevation of Privilege Vulnerability\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T10:28:40.887Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-23397\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"active\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-03-21T18:47:26.732010Z\"}}}, {\"other\": {\"type\": \"kev\", \"content\": {\"dateAdded\": \"2023-03-14\", \"reference\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-23397\"}}}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2023-03-14T00:00:00+00:00\", \"value\": \"CVE-2023-23397 added to CISA KEV\"}], \"references\": [{\"url\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-23397\", \"tags\": [\"government-resource\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-02-04T18:34:19.807Z\"}}], \"cna\": {\"title\": \"Microsoft Outlook Elevation of Privilege Vulnerability\", \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 9.8, \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C\"}, \"scenarios\": [{\"lang\": \"en-US\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"Microsoft\", \"product\": \"Microsoft Office LTSC 2021\", \"versions\": [{\"status\": \"affected\", \"version\": \"16.0.1\", \"lessThan\": \"https://aka.ms/OfficeSecurityReleases\", \"versionType\": \"custom\"}], \"platforms\": [\"32-bit Systems\", \"x64-based Systems\"]}, {\"vendor\": \"Microsoft\", \"product\": \"Microsoft Outlook 2016\", \"versions\": [{\"status\": \"affected\", \"version\": \"16.0.0.0\", \"lessThan\": \"16.0.5387.1000\", \"versionType\": \"custom\"}], \"platforms\": [\"32-bit Systems\", \"x64-based Systems\"]}, {\"vendor\": \"Microsoft\", \"product\": \"Microsoft 365 Apps for Enterprise\", \"versions\": [{\"status\": \"affected\", \"version\": \"16.0.1\", \"lessThan\": \"https://aka.ms/OfficeSecurityReleases\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\", \"32-bit Systems\"]}, {\"vendor\": \"Microsoft\", \"product\": \"Microsoft Office 2019\", \"versions\": [{\"status\": \"affected\", \"version\": \"19.0.0\", \"lessThan\": \"https://aka.ms/OfficeSecurityReleases\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\", \"32-bit Systems\"]}, {\"vendor\": \"Microsoft\", \"product\": \"Microsoft Outlook 2013 Service Pack 1\", \"versions\": [{\"status\": \"affected\", \"version\": \"15.0.0.0\", \"lessThan\": \"15.0.5537.1000\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\", \"ARM64-based Systems\", \"32-bit Systems\"]}], \"datePublic\": \"2023-03-14T07:00:00.000Z\", \"references\": [{\"url\": \"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-23397\", \"name\": \"Microsoft Outlook Elevation of Privilege Vulnerability\", \"tags\": [\"vendor-advisory\"]}], \"descriptions\": [{\"lang\": \"en-US\", \"value\": \"Microsoft Outlook Elevation of Privilege Vulnerability\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en-US\", \"type\": \"CWE\", \"cweId\": \"CWE-20\", \"description\": \"CWE-20: Improper Input Validation\"}]}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:a:microsoft:office_long_term_servicing_channel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"https://aka.ms/OfficeSecurityReleases\", \"versionStartIncluding\": \"16.0.1\"}, {\"criteria\": \"cpe:2.3:a:microsoft:outlook:*:*:*:*:*:x86:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"16.0.5387.1000\", \"versionStartIncluding\": \"16.0.0.0\"}, {\"criteria\": \"cpe:2.3:a:microsoft:365_apps:*:*:*:*:enterprise:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"https://aka.ms/OfficeSecurityReleases\", \"versionStartIncluding\": \"16.0.1\"}, {\"criteria\": \"cpe:2.3:a:microsoft:office:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"https://aka.ms/OfficeSecurityReleases\", \"versionStartIncluding\": \"19.0.0\"}, {\"criteria\": \"cpe:2.3:a:microsoft:outlook:*:*:*:*:*:*:x64:*\", \"vulnerable\": true, \"versionEndExcluding\": \"15.0.5537.1000\", \"versionStartIncluding\": \"15.0.0.0\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"f38d906d-7342-40ea-92c1-6c4a2c6478c8\", \"shortName\": \"microsoft\", \"dateUpdated\": \"2025-01-01T00:48:07.606Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2023-23397\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-21T23:15:23.783Z\", \"dateReserved\": \"2023-01-11T22:08:03.137Z\", \"assignerOrgId\": \"f38d906d-7342-40ea-92c1-6c4a2c6478c8\", \"datePublished\": \"2023-03-14T16:55:28.168Z\", \"assignerShortName\": \"microsoft\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…
Loading…