Microsoft Office 365 For Mac vulnerabilities

CVE-2026-64904 [HIGH] CWE-843 CVE-2026-64904: Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthor Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2026-64903 [HIGH] CWE-122 CVE-2026-64903: Integer overflow or wraparound in Microsoft Office allows an unauthorized attacker to execute code l Integer overflow or wraparound in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2026-64905 [HIGH] CWE-126 CVE-2026-64905: Buffer over-read in Microsoft Office Word allows an unauthorized attacker to execute code locally. Buffer over-read in Microsoft Office Word allows an unauthorized attacker to execute code locally.

CVE-2026-68806 [HIGH] CWE-787 CVE-2026-68806: Out-of-bounds write in Microsoft Office Excel allows an unauthorized attacker to execute code locall Out-of-bounds write in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2026-64911 [HIGH] CWE-122 CVE-2026-64911: Integer overflow or wraparound in Microsoft Office allows an unauthorized attacker to execute code l Integer overflow or wraparound in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2026-55036 [HIGH] CWE-126 CVE-2026-55036: Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2026-55025 [HIGH] CWE-843 CVE-2026-55025: Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an un Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2026-55022 [HIGH] CWE-843 CVE-2026-55022: Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthor Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2026-55949 [HIGH] CWE-908 CVE-2026-55949: Use of uninitialized resource in Microsoft Office Excel allows an unauthorized attacker to execute c Use of uninitialized resource in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2026-55024 [HIGH] CWE-843 CVE-2026-55024: Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an un Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2026-44817 [HIGH] CWE-843 CVE-2026-44817: Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an un Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2026-45469 [HIGH] CWE-122 CVE-2026-45469: Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2026-56176 [HIGH] CWE-125 CVE-2026-56176: Out-of-bounds read in Windows Win32K - GRFX allows an authorized attacker to elevate privileges loca Out-of-bounds read in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.

CVE-2026-81957 [HIGH] CWE-125 CVE-2026-81957: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2026-81956 [HIGH] CWE-125 CVE-2026-81956: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2026-68793 [HIGH] CWE-125 CVE-2026-68793: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2026-63515 [HIGH] CWE-125 CVE-2026-63515: Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally. Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2026-68804 [HIGH] CWE-122 CVE-2026-68804: Numeric truncation error in Microsoft Office Excel allows an unauthorized attacker to execute code l Numeric truncation error in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2026-68814 [HIGH] CWE-125 CVE-2026-68814: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2026-68810 [HIGH] CWE-822 CVE-2026-68810: Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute c Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.