Microsoft Office Excel vulnerabilities

180 known CVE vulnerabilities in Microsoft Office Excel, translated and rated.

CVE-2026-40360High
An out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
CVE-2026-40359High
A use after free vulnerability in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-20957High
Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-20956High
Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-20955High
Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-20950High
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-20949High
Improper access control in Microsoft Office Excel allows an unauthorized attacker to bypass a security feature locally.
CVE-2026-20946High
An out-of-bounds read vulnerability in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-97780High
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97779Medium
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network. The attacker can read data outside the intended memory bounds.
CVE-2026-97778High
Integer overflow or wraparound in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97777High
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97776High
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97775High
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97773High
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97772High
Double free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97771High
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97770High
Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. The vulnerability stems from improper memory handling during data processing.
CVE-2026-97769High
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. The vulnerability results from memory allocation errors.
CVE-2026-97768High
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. The vulnerability results from memory allocation errors.
CVE-2026-97767High
Double free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. The vulnerability leads to memory corruption.
CVE-2026-97766High
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. The vulnerability results from memory allocation errors.
CVE-2026-97765High
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. The vulnerability results from memory allocation errors.
CVE-2026-97763High
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97762High
Out-of-bounds write in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97761High
Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97760Medium
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network. The attacker can read data outside the intended memory bounds.
CVE-2026-97759High
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97758High
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97757High
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97756High
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97755High
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97754High
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97753High
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97752High
Use-after-free vulnerability in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97751High
Heap-based buffer overflow vulnerability in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97750High
Stack-based buffer overflow vulnerability in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97748High
Heap-based buffer overflow vulnerability in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97747High
Use-after-free vulnerability in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97746High
Integer underflow (wrap or wraparound) vulnerability in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97745High
Use-after-free vulnerability in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97743Medium
Use after free in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
CVE-2026-97742High
Stack-based buffer overflow vulnerability in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97741High
Heap-based buffer overflow vulnerability in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97740Medium
Exposure of sensitive system information to an unauthorized control sphere in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
CVE-2026-97739High
Integer underflow (wrap or wraparound) vulnerability in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97738High
Use-after-free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97017High
Use-after-free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVE-2026-97014Medium
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
CVE-2026-97011High
Use of uninitialized resource in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS