CVE-2026-55121 (GCVE-0-2026-55121)
Vulnerability from cvelistv5 – Published: 2026-07-14 17:10 – Updated: 2026-07-14 19:42
VLAI
EPSS
VEX
Title
Microsoft Office Information Disclosure Vulnerability
Summary
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
11 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Microsoft 365 Apps for Enterprise |
Affected:
16.0.1 , < https://aka.ms/OfficeSecurityReleases
(custom)
|
|
| Microsoft | Microsoft Office 2016 |
Affected:
16.0.0 , < 16.0.5561.1000
(custom)
|
|
| Microsoft | Microsoft Office 2019 |
Affected:
19.0.0 , < https://aka.ms/OfficeSecurityReleases
(custom)
|
|
| Microsoft | Microsoft Office 365 for Mac |
Affected:
1.0.0 , < 16.111.26071215
(custom)
|
|
| Microsoft | Microsoft Office LTSC 2021 |
Affected:
16.0.1 , < https://aka.ms/OfficeSecurityReleases
(custom)
|
|
| Microsoft | Microsoft Office LTSC 2024 |
Affected:
16.0.0 , < https://aka.ms/OfficeSecurityReleases
(custom)
|
|
| Microsoft | Microsoft Office LTSC for Mac 2021 |
Affected:
16.0.1 , < 16.111.26071215
(custom)
|
|
| Microsoft | Microsoft Office LTSC for Mac 2024 |
Affected:
16.0.0 , < 16.111.26071215
(custom)
|
|
| Microsoft | Microsoft SharePoint Enterprise Server 2016 |
Affected:
16.0.0 , < 16.0.5561.1001
(custom)
|
|
| Microsoft | Microsoft SharePoint Server 2019 |
Affected:
16.0.0 , < 16.0.10417.20175
(custom)
|
|
| Microsoft | Microsoft SharePoint Server Subscription Edition |
Affected:
16.0.0 , < 16.0.19725.20434
(custom)
|
Date Public
2026-07-14 14:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-55121",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-14T17:46:06.794813Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-14T17:46:13.578Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"platforms": [
"32-bit Systems",
"x64-based Systems"
],
"product": "Microsoft 365 Apps for Enterprise",
"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 Office 2016",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "16.0.5561.1000",
"status": "affected",
"version": "16.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"32-bit Systems",
"x64-based Systems"
],
"product": "Microsoft Office 2019",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "https://aka.ms/OfficeSecurityReleases",
"status": "affected",
"version": "19.0.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Office 365 for Mac",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "16.111.26071215",
"status": "affected",
"version": "1.0.0",
"versionType": "custom"
}
]
},
{
"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 Office LTSC 2024",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "https://aka.ms/OfficeSecurityReleases",
"status": "affected",
"version": "16.0.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Office LTSC for Mac 2021",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "16.111.26071215",
"status": "affected",
"version": "16.0.1",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Office LTSC for Mac 2024",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "16.111.26071215",
"status": "affected",
"version": "16.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Microsoft SharePoint Enterprise Server 2016",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "16.0.5561.1001",
"status": "affected",
"version": "16.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Microsoft SharePoint Server 2019",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "16.0.10417.20175",
"status": "affected",
"version": "16.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Microsoft SharePoint Server Subscription Edition",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "16.0.19725.20434",
"status": "affected",
"version": "16.0.0",
"versionType": "custom"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:microsoft:office_365:*:*:*:*:*:macos:*:*",
"versionEndExcluding": "16.111.26071215",
"versionStartIncluding": "1.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:sharepoint_server_2016:*:*:*:*:enterprise:*:*:*",
"versionEndExcluding": "16.0.5561.1001",
"versionStartIncluding": "16.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:sharepoint_server_2019:*:*:*:*:*:*:*:*",
"versionEndExcluding": "16.0.10417.20175",
"versionStartIncluding": "16.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:office_2019:*:*:*:*:*:*:*:*",
"versionEndExcluding": "https://aka.ms/OfficeSecurityReleases",
"versionStartIncluding": "19.0.0",
"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_macos_2021:*:*:*:*:*:long_term_servicing_channel:*:*",
"versionEndExcluding": "16.111.26071215",
"versionStartIncluding": "16.0.1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:office_2021:*:*:*:*:long_term_servicing_channel:*:*:*",
"versionEndExcluding": "https://aka.ms/OfficeSecurityReleases",
"versionStartIncluding": "16.0.1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:subscription:*:*:*",
"versionEndExcluding": "16.0.19725.20434",
"versionStartIncluding": "16.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:office_2024:*:*:*:*:long_term_servicing_channel:*:*:*",
"versionEndExcluding": "https://aka.ms/OfficeSecurityReleases",
"versionStartIncluding": "16.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:office_macos_2024:*:*:*:*:*:long_term_servicing_channel:*:*",
"versionEndExcluding": "16.111.26071215",
"versionStartIncluding": "16.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:office_2016:*:*:*:*:*:*:x86:*",
"versionEndExcluding": "16.0.5561.1000",
"versionStartIncluding": "16.0.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"datePublic": "2026-07-14T14:00:00.000Z",
"descriptions": [
{
"lang": "en-US",
"value": "Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en-US",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-125",
"description": "CWE-125: Out-of-bounds Read",
"lang": "en-US",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-14T19:42:37.895Z",
"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"shortName": "microsoft"
},
"references": [
{
"name": "Microsoft Office Information Disclosure Vulnerability",
"tags": [
"vendor-advisory",
"patch"
],
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55121"
}
],
"title": "Microsoft Office Information Disclosure Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"assignerShortName": "microsoft",
"cveId": "CVE-2026-55121",
"datePublished": "2026-07-14T17:10:17.586Z",
"dateReserved": "2026-06-16T15:03:49.680Z",
"dateUpdated": "2026-07-14T19:42:37.895Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-55121",
"date": "2026-07-15",
"epss": "0.00361",
"percentile": "0.28268"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2026-55121\",\"sourceIdentifier\":\"secure@microsoft.com\",\"published\":\"2026-07-14T18:18:18.347\",\"lastModified\":\"2026-07-14T20:35:32.720\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.\"}],\"affected\":[{\"source\":\"secure@microsoft.com\",\"affectedData\":[{\"vendor\":\"Microsoft\",\"product\":\"Microsoft 365 Apps for Enterprise\",\"platforms\":[\"32-bit Systems\",\"x64-based Systems\"],\"versions\":[{\"version\":\"16.0.1\",\"lessThan\":\"https://aka.ms/OfficeSecurityReleases\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Microsoft Office 2016\",\"platforms\":[\"32-bit Systems\",\"x64-based Systems\"],\"versions\":[{\"version\":\"16.0.0\",\"lessThan\":\"16.0.5561.1000\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Microsoft Office 2019\",\"platforms\":[\"32-bit Systems\",\"x64-based Systems\"],\"versions\":[{\"version\":\"19.0.0\",\"lessThan\":\"https://aka.ms/OfficeSecurityReleases\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Microsoft Office 365 for Mac\",\"versions\":[{\"version\":\"1.0.0\",\"lessThan\":\"16.111.26071215\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Microsoft Office LTSC 2021\",\"platforms\":[\"32-bit Systems\",\"x64-based Systems\"],\"versions\":[{\"version\":\"16.0.1\",\"lessThan\":\"https://aka.ms/OfficeSecurityReleases\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Microsoft Office LTSC 2024\",\"platforms\":[\"32-bit Systems\",\"x64-based Systems\"],\"versions\":[{\"version\":\"16.0.0\",\"lessThan\":\"https://aka.ms/OfficeSecurityReleases\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Microsoft Office LTSC for Mac 2021\",\"versions\":[{\"version\":\"16.0.1\",\"lessThan\":\"16.111.26071215\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Microsoft Office LTSC for Mac 2024\",\"versions\":[{\"version\":\"16.0.0\",\"lessThan\":\"16.111.26071215\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Microsoft SharePoint Enterprise Server 2016\",\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"16.0.0\",\"lessThan\":\"16.0.5561.1001\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Microsoft SharePoint Server 2019\",\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"16.0.0\",\"lessThan\":\"16.0.10417.20175\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Microsoft SharePoint Server Subscription Edition\",\"platforms\":[\"x64-based Systems\"],\"versions\":[{\"version\":\"16.0.0\",\"lessThan\":\"16.0.19725.20434\",\"versionType\":\"custom\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"secure@microsoft.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-07-14T17:46:06.794813Z\",\"id\":\"CVE-2026-55121\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"secure@microsoft.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-125\"}]}],\"references\":[{\"url\":\"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55121\",\"source\":\"secure@microsoft.com\"}]}}",
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-55121\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-07-14T17:46:06.794813Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-07-14T17:46:10.017Z\"}}], \"cna\": {\"title\": \"Microsoft Office Information Disclosure Vulnerability\", \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 5.5, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C\"}, \"scenarios\": [{\"lang\": \"en-US\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"Microsoft\", \"product\": \"Microsoft 365 Apps for Enterprise\", \"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 Office 2016\", \"versions\": [{\"status\": \"affected\", \"version\": \"16.0.0\", \"lessThan\": \"16.0.5561.1000\", \"versionType\": \"custom\"}], \"platforms\": [\"32-bit Systems\", \"x64-based Systems\"]}, {\"vendor\": \"Microsoft\", \"product\": \"Microsoft Office 2019\", \"versions\": [{\"status\": \"affected\", \"version\": \"19.0.0\", \"lessThan\": \"https://aka.ms/OfficeSecurityReleases\", \"versionType\": \"custom\"}], \"platforms\": [\"32-bit Systems\", \"x64-based Systems\"]}, {\"vendor\": \"Microsoft\", \"product\": \"Microsoft Office 365 for Mac\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.0.0\", \"lessThan\": \"16.111.26071215\", \"versionType\": \"custom\"}]}, {\"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 Office LTSC 2024\", \"versions\": [{\"status\": \"affected\", \"version\": \"16.0.0\", \"lessThan\": \"https://aka.ms/OfficeSecurityReleases\", \"versionType\": \"custom\"}], \"platforms\": [\"32-bit Systems\", \"x64-based Systems\"]}, {\"vendor\": \"Microsoft\", \"product\": \"Microsoft Office LTSC for Mac 2021\", \"versions\": [{\"status\": \"affected\", \"version\": \"16.0.1\", \"lessThan\": \"16.111.26071215\", \"versionType\": \"custom\"}]}, {\"vendor\": \"Microsoft\", \"product\": \"Microsoft Office LTSC for Mac 2024\", \"versions\": [{\"status\": \"affected\", \"version\": \"16.0.0\", \"lessThan\": \"16.111.26071215\", \"versionType\": \"custom\"}]}, {\"vendor\": \"Microsoft\", \"product\": \"Microsoft SharePoint Enterprise Server 2016\", \"versions\": [{\"status\": \"affected\", \"version\": \"16.0.0\", \"lessThan\": \"16.0.5561.1001\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}, {\"vendor\": \"Microsoft\", \"product\": \"Microsoft SharePoint Server 2019\", \"versions\": [{\"status\": \"affected\", \"version\": \"16.0.0\", \"lessThan\": \"16.0.10417.20175\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}, {\"vendor\": \"Microsoft\", \"product\": \"Microsoft SharePoint Server Subscription Edition\", \"versions\": [{\"status\": \"affected\", \"version\": \"16.0.0\", \"lessThan\": \"16.0.19725.20434\", \"versionType\": \"custom\"}], \"platforms\": [\"x64-based Systems\"]}], \"datePublic\": \"2026-07-14T14:00:00.000Z\", \"references\": [{\"url\": \"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55121\", \"name\": \"Microsoft Office Information Disclosure Vulnerability\", \"tags\": [\"vendor-advisory\", \"patch\"]}], \"descriptions\": [{\"lang\": \"en-US\", \"value\": \"Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en-US\", \"type\": \"CWE\", \"cweId\": \"CWE-125\", \"description\": \"CWE-125: Out-of-bounds Read\"}]}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:a:microsoft:office_365:*:*:*:*:*:macos:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"16.111.26071215\", \"versionStartIncluding\": \"1.0.0\"}, {\"criteria\": \"cpe:2.3:a:microsoft:sharepoint_server_2016:*:*:*:*:enterprise:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"16.0.5561.1001\", \"versionStartIncluding\": \"16.0.0\"}, {\"criteria\": \"cpe:2.3:a:microsoft:sharepoint_server_2019:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"16.0.10417.20175\", \"versionStartIncluding\": \"16.0.0\"}, {\"criteria\": \"cpe:2.3:a:microsoft:office_2019:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"https://aka.ms/OfficeSecurityReleases\", \"versionStartIncluding\": \"19.0.0\"}, {\"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_macos_2021:*:*:*:*:*:long_term_servicing_channel:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"16.111.26071215\", \"versionStartIncluding\": \"16.0.1\"}, {\"criteria\": \"cpe:2.3:a:microsoft:office_2021:*:*:*:*:long_term_servicing_channel:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"https://aka.ms/OfficeSecurityReleases\", \"versionStartIncluding\": \"16.0.1\"}, {\"criteria\": \"cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:subscription:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"16.0.19725.20434\", \"versionStartIncluding\": \"16.0.0\"}, {\"criteria\": \"cpe:2.3:a:microsoft:office_2024:*:*:*:*:long_term_servicing_channel:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"https://aka.ms/OfficeSecurityReleases\", \"versionStartIncluding\": \"16.0.0\"}, {\"criteria\": \"cpe:2.3:a:microsoft:office_macos_2024:*:*:*:*:*:long_term_servicing_channel:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"16.111.26071215\", \"versionStartIncluding\": \"16.0.0\"}, {\"criteria\": \"cpe:2.3:a:microsoft:office_2016:*:*:*:*:*:*:x86:*\", \"vulnerable\": true, \"versionEndExcluding\": \"16.0.5561.1000\", \"versionStartIncluding\": \"16.0.0\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"f38d906d-7342-40ea-92c1-6c4a2c6478c8\", \"shortName\": \"microsoft\", \"dateUpdated\": \"2026-07-14T18:45:29.589Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-55121\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-07-14T18:45:29.589Z\", \"dateReserved\": \"2026-06-16T15:03:49.680Z\", \"assignerOrgId\": \"f38d906d-7342-40ea-92c1-6c4a2c6478c8\", \"datePublished\": \"2026-07-14T17:10:17.586Z\", \"assignerShortName\": \"microsoft\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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.
Loading…
Loading…