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CVE-2026-44822 Details

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:8.2 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

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URL	Source(s)	Tag(s)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44822	[email protected]	Vendor Advisory

CWE-ID	CWE Name	Source
CWE-125	Out-of-bounds Read	[email protected]

Product	Versions
microsoft 365 apps	All versions
CPE cpe:2.3:a:microsoft:365_apps:-::::enterprise::x64:* cpe:2.3:a:microsoft:365_apps:-::::enterprise::x86:* Remediation No remediation found in references.
microsoft excel	2016
CPE cpe:2.3:a:microsoft:excel:2016::::::x64: cpe:2.3:a:microsoft:excel:2016::::::x86: Remediation No remediation found in references.
microsoft microsoft 365	All versions
CPE cpe:2.3:a:microsoft:microsoft_365:-:::::macos:: Remediation No remediation found in references.
microsoft office 2019	All versions
CPE cpe:2.3:a:microsoft:office_2019:-::::::x64: cpe:2.3:a:microsoft:office_2019:-::::::x86: Remediation No remediation found in references.
microsoft office 2021	All versions
CPE cpe:2.3:a:microsoft:office_2021:-::::ltsc:-:x64: cpe:2.3:a:microsoft:office_2021:-::::ltsc:-:x86: cpe:2.3:a:microsoft:office_2021:-::::ltsc:macos:-: Remediation No remediation found in references.
microsoft office 2024	All versions
CPE cpe:2.3:a:microsoft:office_2024:-::::ltsc:-:x64: cpe:2.3:a:microsoft:office_2024:-::::ltsc:-:x86: cpe:2.3:a:microsoft:office_2024:-::::ltsc:macos:-: Remediation No remediation found in references.
microsoft office online server	All versions
CPE cpe:2.3:a:microsoft:office_online_server:-:::::::* Remediation No remediation found in references.

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