Microsoft Office Excel vulnerabilities

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

CVE-2026-55048High
An integer overflow or wraparound vulnerability in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-55046Medium
An out-of-bounds read vulnerability in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
CVE-2026-55044High
An out-of-bounds read vulnerability in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-55041High
A heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-55039High
An integer underflow vulnerability in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-55037High
A heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally. The vulnerability can be exploited by opening a specially crafted Excel file.
CVE-2026-55036High
A buffer over-read vulnerability in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-55031High
An out-of-bounds read vulnerability in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-55029High
A heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally. The vulnerability can be triggered by opening a specially crafted file.
CVE-2026-55025High
A type confusion vulnerability in Microsoft Office Excel allows an unauthorized attacker to execute code locally. The flaw is caused by accessing a resource using an incompatible data type.
CVE-2026-55024High
A type confusion vulnerability in Microsoft Office Excel allows an unauthorized attacker to execute code locally. The flaw is caused by accessing a resource using an incompatible data type.
CVE-2026-54131High
A Use-After-Free vulnerability in Microsoft Office Excel allows an unauthorized attacker to execute code locally. The issue stems from improper memory management when processing specially crafted Excel files.
CVE-2026-50408Medium
An out-of-bounds read vulnerability in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
CVE-2026-48580Medium
An untrusted pointer dereference vulnerability in Microsoft Office Excel allows an unauthorized attacker to disclose information locally. This flaw can be exploited to read sensitive data from Excel files.
CVE-2026-47642High
A Use-After-Free vulnerability in Microsoft Office Excel allows an unauthorized attacker to execute code locally. The issue stems from improper memory management when processing specially crafted Excel files.
CVE-2026-58618High
A heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-55948High
A Use-After-Free vulnerability in Microsoft Office Excel allows an unauthorized attacker to execute code locally. The issue stems from improper memory management when processing specially crafted Excel files.
CVE-2026-55899High
A stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-54988Medium
An out-of-bounds read vulnerability in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
CVE-2026-50678Medium
A heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
CVE-2026-50675High
A heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-45469High
Integer underflow (wrap or wraparound) vulnerability in Microsoft Office Excel. An unauthorized attacker can exploit this flaw to execute code locally.
CVE-2026-45459Low
A protection mechanism failure in Microsoft Office Excel allows an unauthorized attacker to bypass a security feature locally.
CVE-2026-45455Low
An out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
CVE-2026-44823High
Numeric truncation error vulnerability in Microsoft Office Excel. An unauthorized attacker can exploit this flaw to execute code locally.
CVE-2026-44822High
An out-of-bounds read vulnerability in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
CVE-2026-44820High
Out-of-bounds read vulnerability in Microsoft Office Excel. An unauthorized attacker can exploit this flaw to execute code locally.
CVE-2026-44818High
A race condition in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-44817High
Access of resource using incompatible type ('type confusion') vulnerability in Microsoft Office Excel. An unauthorized attacker can exploit this flaw to execute code locally.