Microsoft Office Ltsc For Mac 2021 CVEs and Security Vulnerabilities

CVE-2026-97771

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-2026-108430

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 Microsoft Office Ltsc 2021 and 8 more

CVE-2026-108432

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 Microsoft 365 Apps For Enterprise and 10 more

CVE-2026-108435

Microsoft Office Word Information Disclosure Vulnerability

Untrusted pointer dereference in Microsoft Office Word 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-2026-108443

Microsoft Office Word Remote Code Execution Vulnerability

Off-by-one error 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 Microsoft Office Ltsc 2021 and 8 more

CVE-2026-108455

Microsoft Office PowerPoint Information Disclosure Vulnerability

Out-of-bounds read in Microsoft Office PowerPoint 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-2026-97772

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-2026-88144

Microsoft Office PowerPoint Remote Code Execution Vulnerability

Use after free in Microsoft Office PowerPoint 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-2026-88169

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% KEV · Not listed

Vendors

Microsoft

Products

365 Apps Microsoft 365 Microsoft Office Ltsc 2021 and 8 more

CVE-2026-88184

Microsoft Office Excel Information Disclosure Vulnerability

Out-of-bounds read 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 365 Apps For Enterprise and 10 more

CVE-2026-88150

Microsoft Office Word Remote Code Execution Vulnerability

Use of uninitialized resource 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 Microsoft 365 Apps For Enterprise and 10 more

CVE-2026-88185

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 · 8.1 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

365 Apps Microsoft 365 Microsoft 365 Apps For Enterprise and 10 more

CVE-2026-88196

Microsoft Office Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office 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-2026-105599

Microsoft Office PowerPoint Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office PowerPoint 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 365 Microsoft Office Ltsc 2021 and 8 more

CVE-2026-97753

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-2026-100210

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-2026-96997

Microsoft Office OneNote Elevation of Privilege Vulnerability

Use after free in Microsoft Office OneNote allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Microsoft

Products

365 Apps Microsoft 365 Microsoft Office Ltsc 2021 and 8 more

CVE-2026-97008

Microsoft Office Excel Remote Code Execution Vulnerability

Buffer underwrite ('buffer underflow') 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-2026-97757

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-2026-97738

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 9 more

Search vulnerabilities

Microsoft Office Excel Remote Code Execution Vulnerability

Microsoft Office 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 PowerPoint Information Disclosure Vulnerability

Microsoft Office Excel Remote Code Execution Vulnerability

Microsoft Office PowerPoint Remote Code Execution Vulnerability

Microsoft Office Word Information Disclosure Vulnerability

Microsoft Office Excel Information Disclosure Vulnerability

Microsoft Office Word Remote Code Execution Vulnerability

Microsoft Office Word Remote Code Execution Vulnerability

Microsoft Office Remote Code Execution Vulnerability

Microsoft Office PowerPoint Remote Code Execution Vulnerability

Microsoft Office Excel Remote Code Execution Vulnerability

Microsoft Office Excel Remote Code Execution Vulnerability

Microsoft Office OneNote Elevation of Privilege Vulnerability

Microsoft Office Excel Remote Code Execution Vulnerability

Microsoft Office Excel Remote Code Execution Vulnerability

Microsoft Office Excel Remote Code Execution Vulnerability