Microsoft Office 365 For Mac vulnerabilities

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-2026-44823 [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-2026-70313 [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.

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-2026-88210 [HIGH] CWE-807 CVE-2026-88210: Reliance on untrusted inputs in a security decision in Microsoft Office Word allows an unauthorized Reliance on untrusted inputs in a security decision in Microsoft Office Word allows an unauthorized attacker to bypass a security feature locally.

CVE-2026-108433 [HIGH] CWE-807 CVE-2026-108433: Reliance on untrusted inputs in a security decision in Microsoft Office Word allows an unauthorized Reliance on untrusted inputs in a security decision in Microsoft Office Word allows an unauthorized attacker to bypass a security feature 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-2026-80087 [MEDIUM] CWE-122 CVE-2026-80087: Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to disclose informati Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to disclose information over a network.

CVE-2026-97743 [MEDIUM] CWE-416 CVE-2026-97743: Use after free in Microsoft Office Excel allows an unauthorized attacker to disclose information ove Use after free in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.

CVE-2026-78520 [MEDIUM] CWE-125 CVE-2026-78520: Out-of-bounds read in Microsoft Office Outlook allows an unauthorized attacker to execute code over Out-of-bounds read in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.

CVE-2026-88167 [MEDIUM] CWE-126 CVE-2026-88167: Buffer over-read in Microsoft Office Word allows an unauthorized attacker to disclose information ov Buffer over-read in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.

CVE-2026-108454 [MEDIUM] CWE-126 CVE-2026-108454: Buffer over-read in Microsoft Office PowerPoint allows an unauthorized attacker to disclose informat Buffer over-read in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network.

CVE-2026-108438 [MEDIUM] CWE-416 CVE-2026-108438: Use after free in Microsoft Office Word allows an unauthorized attacker to disclose information over Use after free in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.