Microsoft Office Ltsc 2021 CVEs and Security Vulnerabilities

CVE-2026-112741

Microsoft Office Word Remote Code Execution Vulnerability

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

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

365 Apps Microsoft 365 Apps For Enterprise Microsoft Office 365 For Mac and 9 more

CVE-2026-110051

Microsoft Office Word Information Disclosure Vulnerability

Incorrect conversion between numeric types in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.

CVSS 3.1 · 6.5 Medium EPSS 1.1% KEV · Not listed

Vendors

Microsoft

Products

365 Apps Microsoft Office Ltsc 2021 Microsoft Office Ltsc 2024 and 7 more

CVE-2026-110053

Microsoft Office Word Remote Code Execution Vulnerability

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

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

365 Apps Microsoft Office Ltsc 2021 Microsoft Office Ltsc 2024 and 7 more

CVE-2026-110054

Microsoft Office Word Remote Code Execution Vulnerability

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

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

365 Apps Microsoft Office Ltsc 2021 Microsoft Office Ltsc 2024 and 7 more

CVE-2026-110064

Microsoft Office Word Remote Code Execution Vulnerability

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

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

365 Apps Microsoft 365 Apps For Enterprise Microsoft Office 365 For Mac and 9 more

CVE-2026-110043

Microsoft Office Outlook Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.

CVSS 3.1 · 8.8 High EPSS 1.1% KEV · Not listed

Vendors

Microsoft

Products

365 Apps Microsoft Office Ltsc 2021 Microsoft Office Ltsc 2024 and 2 more

CVE-2026-111286

Microsoft Office Remote Code Execution Vulnerability

Use after free in Microsoft Office allows an unauthorized attacker to execute code over a network.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

365 Apps Microsoft Office Ltsc 2021 Microsoft Office Ltsc 2024 and 7 more

CVE-2026-111287

Microsoft Office Word Remote Code Execution Vulnerability

Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

365 Apps Microsoft Office Ltsc 2021 Microsoft Office Ltsc 2024 and 7 more

CVE-2026-111290

Microsoft Office Word Remote Code Execution Vulnerability

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

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

365 Apps Microsoft Office Ltsc 2021 Microsoft Office Ltsc 2024 and 2 more

CVE-2026-111294

Microsoft Office Word Remote Code Execution Vulnerability

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

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

365 Apps Microsoft Office Ltsc 2021 Microsoft Office Ltsc 2024 and 7 more

CVE-2026-111301

Microsoft Office Access Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

365 Apps Microsoft Office Ltsc 2021 Microsoft Office Ltsc 2024 and 2 more

CVE-2026-111302

Microsoft Office 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 Office Ltsc 2021 Microsoft Office Ltsc 2024 and 7 more

CVE-2026-111307

Microsoft Office Word Remote Code Execution Vulnerability

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

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

365 Apps Microsoft 365 Apps For Enterprise Microsoft Office 365 For Mac and 9 more

CVE-2026-111310

Microsoft Office Word Remote Code Execution Vulnerability

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

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

365 Apps Microsoft Office Ltsc 2021 Microsoft Office Ltsc 2024 and 7 more

CVE-2026-110048

Microsoft Word Remote Code Execution Vulnerability

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

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

365 Apps Microsoft 365 Apps For Enterprise Microsoft Office 365 For Mac and 9 more

CVE-2026-110067

Microsoft Office Word Remote Code Execution Vulnerability

Use after free in Microsoft Office Word allows an unauthorized attacker to execute code over a network.

CVSS 3.1 · 8.8 High EPSS 1.1% KEV · Not listed

Vendors

Microsoft

Products

365 Apps Microsoft Office Ltsc 2021 Microsoft Office Ltsc 2024 and 7 more

CVE-2026-111288

Microsoft Office Word Information Disclosure Vulnerability

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

CVSS 3.1 · 6.5 Medium EPSS 1.1% KEV · Not listed

Vendors

Microsoft

Products

365 Apps Microsoft Office Ltsc 2021 Microsoft Office Ltsc 2024 and 7 more

CVE-2026-109500

Microsoft Office Word Remote Code Execution Vulnerability

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

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

365 Apps Microsoft Office Ltsc 2021 Microsoft Office Ltsc 2024 and 7 more

CVE-2026-109503

Microsoft Office Word Remote Code Execution Vulnerability

Double free in Microsoft Office Word allows an unauthorized attacker to execute code over a network.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

365 Apps Microsoft Office Ltsc 2021 Microsoft Office Ltsc 2024 and 7 more

CVE-2026-109505

Microsoft Office Word Remote Code Execution Vulnerability

Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

365 Apps Microsoft Office Ltsc 2021 Microsoft Office Ltsc 2024 and 7 more

Search vulnerabilities

Microsoft Office Word Remote Code Execution Vulnerability

Microsoft Office Word Information Disclosure Vulnerability

Microsoft Office Word Remote Code Execution Vulnerability

Microsoft Office Word Remote Code Execution Vulnerability

Microsoft Office Word Remote Code Execution Vulnerability

Microsoft Office Outlook Remote Code Execution Vulnerability

Microsoft Office Remote Code Execution Vulnerability

Microsoft Office Word Remote Code Execution Vulnerability

Microsoft Office Word Remote Code Execution Vulnerability

Microsoft Office Word Remote Code Execution Vulnerability

Microsoft Office Access Remote Code Execution Vulnerability

Microsoft Office Word Remote Code Execution Vulnerability

Microsoft Office Word Remote Code Execution Vulnerability

Microsoft Office Word Remote Code Execution Vulnerability

Microsoft Word Remote Code Execution Vulnerability

Microsoft Office Word Remote Code Execution Vulnerability

Microsoft Office Word Information Disclosure Vulnerability

Microsoft Office Word Remote Code Execution Vulnerability

Microsoft Office Word Remote Code Execution Vulnerability

Microsoft Office Word Remote Code Execution Vulnerability