CVE-2026-32198

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32198	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:microsoft:365_apps:-::::enterprise::x64:*
	cpe:2.3:a:microsoft:365_apps:-::::enterprise::x86:*
	cpe:2.3:a:microsoft:excel:2016::::::x64:
	cpe:2.3:a:microsoft:excel:2016::::::x86:
	cpe:2.3:a:microsoft:office:2019::::::x64:
	cpe:2.3:a:microsoft:office:2019::::::x86:
	cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:::::-:x64:*
	cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:::::-:x86:*
	cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:::::macos::
	cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:::::-:x64:*
	cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:::::-:x86:*
	cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:::::macos::
	cpe:2.3:a:microsoft:office_online_server::::::::

History

26 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) Uso después de liberar en Microsoft Office Excel permite a un atacante no autorizado ejecutar código localmente.

Information

Published : 2026-04-14 18:17

Updated : 2026-10-26 21:10

NVD link : CVE-2026-32198

Mitre link : CVE-2026-32198

CVE.ORG link : CVE-2026-32198

JSON object : View

Products Affected

microsoft

office_long_term_servicing_channel
excel
365_apps
office
office_online_server

CWE

CWE-416

Use After Free

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"version": "16.0.1", "lessThan": "https://aka.ms/OfficeSecurityReleases", "versionType": "custom"}], "platforms": ["32-bit Systems", "x64-based Systems"]}, {"vendor": "Microsoft", "product": "Microsoft Excel 2016", "versions": [{"status": "affected", "version": "16.0.0.0", "lessThan": "16.0.5548.1000", "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 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": "16.108.26041219", "versionType": "custom"}]}, {"vendor": "Microsoft", "product": "Microsoft Office LTSC for Mac 2024", "versions": [{"status": "affected", "version": "16.0.0", "lessThan": "16.108.26041219", "versionType": "custom"}]}, {"vendor": "Microsoft", "product": "Office Online Server", "versions": [{"status": "affected", "version": "16.0.0.0", "lessThan": "16.0.10417.20113", "versionType": "custom"}]}]}], "published": "2026-04-14T18:17:26.473", "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32198", "tags": ["Vendor Advisory"], "source": "secure@microsoft.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "secure@microsoft.com", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally."}, {"lang": "es", "value": "Uso despu\u00e9s de liberar en Microsoft Office Excel permite a un atacante no autorizado ejecutar c\u00f3digo localmente."}], "lastModified": "2026-10-26T21:10:00.170", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:*", "vulnerable": true, "matchCriteriaId": "3259EBFE-AE2D-48B8-BE9A-E22BBDB31378"}, {"criteria": "cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x86:*", "vulnerable": true, "matchCriteriaId": "CD25F492-9272-4836-832C-8439EBE64CCF"}, {"criteria": "cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:x64:*", "vulnerable": true, "matchCriteriaId": "CD88F667-6773-4DB7-B6C3-9C7B769C0808"}, {"criteria": "cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:x86:*", "vulnerable": true, "matchCriteriaId": "B342EF98-B414-44D0-BAFB-FCA24294EECE"}, {"criteria": "cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:x64:*", "vulnerable": true, "matchCriteriaId": "CF5DDD09-902E-4881-98D0-CB896333B4AA"}, {"criteria": "cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:x86:*", "vulnerable": true, "matchCriteriaId": "26A3B226-5D7C-4556-9350-5222DC8EFC2C"}, {"criteria": "cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:-:x64:*", "vulnerable": true, "matchCriteriaId": "851BAC4E-9965-4F40-9A6C-B73D9004F4C1"}, {"criteria": "cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:-:x86:*", "vulnerable": true, "matchCriteriaId": "23B2FA23-76F4-4D83-A718-B8D04D7EA37B"}, {"criteria": "cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:macos:*:*", "vulnerable": true, "matchCriteriaId": "BF0E8112-5B6F-4E55-8E40-38ADCF6FC654"}, {"criteria": "cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:-:x64:*", "vulnerable": true, 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