Microsoft Office Ltsc 2021 CVEs and Security Vulnerabilities

CVE-2026-97010

Microsoft Office Excel Remote Code Execution Vulnerability

Use after free in Microsoft Office Excel 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 Microsoft 365 Apps For Enterprise and 11 more

CVE-2026-97765

Microsoft Office Excel Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office Excel 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 Microsoft 365 Apps For Enterprise and 11 more

CVE-2026-97743

Microsoft Office Excel Information Disclosure Vulnerability

Use after free in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

365 Apps Microsoft 365 Microsoft Office Ltsc 2021 and 8 more

CVE-2026-97014

Microsoft Office Excel Information Disclosure Vulnerability

Out-of-bounds read in Microsoft Office Excel 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 Office Ltsc 2021 Microsoft Office Ltsc 2024 and 2 more

CVE-2026-97761

Microsoft Office Excel Remote Code Execution Vulnerability

Stack-based buffer overflow in Microsoft Office Excel 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 Microsoft 365 Apps For Enterprise and 10 more

CVE-2026-97009

Microsoft Office Excel Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office Excel 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 2 more

CVE-2026-97766

Microsoft Office Excel Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office Excel 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 Microsoft 365 Apps For Enterprise and 11 more

CVE-2026-97746

Microsoft Office Excel Remote Code Execution Vulnerability

Integer underflow (wrap or wraparound) in Microsoft Office Excel 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 Microsoft 365 Apps For Enterprise and 11 more

CVE-2026-97749

Microsoft Office Outlook Remote Code Execution Vulnerability

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

CVSS 3.1 · 9.8 Critical EPSS 1.2% KEV · Not listed

Vendors

Microsoft

Products

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

CVE-2026-97758

Microsoft Office Excel Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office Excel 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 Microsoft Office Ltsc 2021 and 9 more

CVE-2026-97754

Microsoft Office Excel Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office Excel 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 Microsoft Office Ltsc 2021 and 9 more

CVE-2026-97759

Microsoft Office Excel Remote Code Execution Vulnerability

Use after free in Microsoft Office Excel 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 Microsoft 365 Apps For Enterprise and 10 more

CVE-2026-97762

Microsoft Office Excel Remote Code Execution Vulnerability

Out-of-bounds write in Microsoft Office Excel 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 Microsoft 365 Apps For Enterprise and 11 more

CVE-2026-97770

Microsoft Office Excel Remote Code Execution Vulnerability

Stack-based buffer overflow in Microsoft Office Excel 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 Microsoft 365 Apps For Enterprise and 11 more

CVE-2026-97768

Microsoft Office Excel Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office Excel 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 Microsoft 365 Apps For Enterprise and 11 more

CVE-2026-97745

Microsoft Office Excel Remote Code Execution Vulnerability

Use after free in Microsoft Office Excel 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 Microsoft Office Ltsc 2021 and 8 more

CVE-2026-102849

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 365 Apps For Enterprise Microsoft Office Ltsc 2021 and 3 more

CVE-2026-97767

Microsoft Office Excel Remote Code Execution Vulnerability

Double free in Microsoft Office Excel 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 Microsoft 365 Apps For Enterprise and 11 more

CVE-2026-97748

Microsoft Office Excel Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office Excel 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 Microsoft 365 Apps For Enterprise and 11 more

CVE-2026-97742

Microsoft Office Excel Remote Code Execution Vulnerability

Stack-based buffer overflow in Microsoft Office Excel 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 Microsoft 365 Apps For Enterprise and 11 more

Search vulnerabilities

Microsoft Office Excel Remote Code Execution Vulnerability

Microsoft Office Excel Remote Code Execution Vulnerability

Microsoft Office Excel Information Disclosure Vulnerability

Microsoft Office Excel Information Disclosure Vulnerability

Microsoft Office Excel Remote Code Execution Vulnerability

Microsoft Office Excel Remote Code Execution Vulnerability

Microsoft Office Excel Remote Code Execution Vulnerability

Microsoft Office Excel Remote Code Execution Vulnerability

Microsoft Office Outlook Remote Code Execution Vulnerability

Microsoft Office Excel Remote Code Execution Vulnerability

Microsoft Office Excel Remote Code Execution Vulnerability

Microsoft Office Excel Remote Code Execution Vulnerability

Microsoft Office Excel Remote Code Execution Vulnerability

Microsoft Office Excel Remote Code Execution Vulnerability

Microsoft Office Excel Remote Code Execution Vulnerability

Microsoft Office Excel Remote Code Execution Vulnerability

Microsoft Office Access Remote Code Execution Vulnerability

Microsoft Office Excel Remote Code Execution Vulnerability

Microsoft Office Excel Remote Code Execution Vulnerability

Microsoft Office Excel Remote Code Execution Vulnerability