Microsoft Office 365 For Mac vulnerabilities

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-2026-55031 [HIGH] CWE-125 CVE-2026-55031: 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-2026-55058 [HIGH] CWE-125 CVE-2026-55058: 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-2026-55044 [HIGH] CWE-125 CVE-2026-55044: 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-2026-55136 [HIGH] CWE-822 CVE-2026-55136: 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.

CVE-2026-45471 [HIGH] CWE-822 CVE-2026-45471: Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute co Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code 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-2026-44823 [HIGH] CWE-197 CVE-2026-44823: 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-2026-45457 [HIGH] CWE-125 CVE-2026-45457: Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to execute code locally. Out-of-bounds read in Microsoft Office Word 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-2026-68810 [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.

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-2026-44820 [HIGH] CWE-125 CVE-2026-44820: 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-2026-45645 [HIGH] CWE-822 CVE-2026-45645: Untrusted pointer dereference in Microsoft Office allows an unauthorized attacker to execute code lo Untrusted pointer dereference in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2026-45643 [HIGH] CWE-822 CVE-2026-45643: Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute co Untrusted pointer dereference in Microsoft Office Word 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-2026-64910 [HIGH] CWE-822 CVE-2026-64910: Untrusted pointer dereference in Microsoft Office allows an unauthorized attacker to execute code lo Untrusted pointer dereference in Microsoft Office 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-2026-70313 [HIGH] CWE-20 CVE-2026-70313: Improper input validation in Microsoft Office PowerPoint allows an unauthorized attacker to disclose Improper input validation in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information locally.