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CVE-2026-55127

Microsoft Word Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
365 Apps Microsoft 365 Office 2019 and 12 more
CVE-2026-55130

Microsoft Word Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
365 Apps Office 2019 Office 2021 and 7 more
CVE-2026-55027

Microsoft Office Information Disclosure Vulnerability

Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
365 Apps Microsoft 365 Office 2016 and 9 more
CVE-2026-55050

Microsoft Word Information Disclosure Vulnerability

Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
365 Apps Microsoft 365 Office 2019 and 11 more
CVE-2026-55026

Microsoft Office Information Disclosure Vulnerability

Integer overflow or wraparound in Microsoft Office allows an unauthorized attacker to disclose information locally.

CVSS 3.1 · 6.2 Medium EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
365 Apps Microsoft 365 Office 2016 and 9 more
CVE-2026-55124

Microsoft Word Information Disclosure Vulnerability

Improper validation of specified type of input in Microsoft Office Word allows an unauthorized attacker to disclose information locally.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
365 Apps Microsoft 365 Office 2019 and 11 more
CVE-2026-55028

Microsoft Office Information Disclosure Vulnerability

Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
365 Apps Microsoft 365 Office 2016 and 9 more
CVE-2026-55125

Microsoft Office Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
365 Apps Microsoft 365 Office 2016 and 9 more