Microsoft Excel 2016 vulnerabilities

CVE-2026-55122 [HIGH] CWE-125 CVE-2026-55122: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

CVE-2026-55898 [HIGH] CWE-125 CVE-2026-55898: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

CVE-2021-31178 [MEDIUM] CWE-191 CVE-2021-31178: Microsoft Office Information Disclosure Vulnerability Microsoft Office Information Disclosure Vulnerability

CVE-2020-17130 [MEDIUM] CVE-2020-17130: Microsoft Excel Security Feature Bypass Vulnerability Microsoft Excel Security Feature Bypass Vulnerability

CVE-2026-21258 [MEDIUM] CWE-20 CVE-2026-21258: Improper input validation in Microsoft Office Excel allows an unauthorized attacker to disclose info Improper input validation in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

CVE-2026-21261 [MEDIUM] CWE-125 CVE-2026-21261: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

CVE-2025-59240 [MEDIUM] CWE-200 CVE-2025-59240: Exposure of sensitive information to an unauthorized actor in Microsoft Office Excel allows an unaut Exposure of sensitive information to an unauthorized actor in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

CVE-2025-54901 [MEDIUM] CWE-126 CVE-2025-54901: Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to disclose information l Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

CVE-2026-55046 [MEDIUM] CWE-125 CVE-2026-55046: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

CVE-2026-50408 [MEDIUM] CWE-125 CVE-2026-50408: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

CVE-2020-1497 [MEDIUM] CVE-2020-1497: An information disclosure vulnerability exists when Microsoft Excel improperly discloses the content An information disclosure vulnerability exists when Microsoft Excel improperly discloses the contents of its memory. An attacker who exploited the vulnerability could use the information to compromise the user’s computer or data. To exploit the vulnerability, an attacker could craft a special document file and then convince the user to open it. An attacker mu

CVE-2020-1224 [MEDIUM] CVE-2020-1224: <p>An information disclosure vulnerability exists when Microsoft Excel improperly discloses the cont An information disclosure vulnerability exists when Microsoft Excel improperly discloses the contents of its memory. An attacker who exploited the vulnerability could use the information to compromise the user’s computer or data. To exploit the vulnerability, an attacker could craft a special document file and then convince the user to open it. An attacker mu

CVE-2026-54988 [MEDIUM] CWE-125 CVE-2026-54988: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

CVE-2026-48580 [MEDIUM] CWE-822 CVE-2026-48580: Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to disclose Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

CVE-2026-55138 [MEDIUM] CWE-822 CVE-2026-55138: Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to disclose Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

CVE-2022-22716 [MEDIUM] CWE-119 CVE-2022-22716: Microsoft Excel Information Disclosure Vulnerability Microsoft Excel Information Disclosure Vulnerability

CVE-2021-28456 [MEDIUM] CVE-2021-28456: Microsoft Excel Information Disclosure Vulnerability Microsoft Excel Information Disclosure Vulnerability

CVE-2021-31174 [MEDIUM] CWE-125 CVE-2021-31174: Microsoft Excel Information Disclosure Vulnerability Microsoft Excel Information Disclosure Vulnerability

CVE-2025-48812 [MEDIUM] CWE-125 CVE-2025-48812: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

CVE-2022-41104 [MEDIUM] CVE-2022-41104: Microsoft Excel Security Feature Bypass Vulnerability Microsoft Excel Security Feature Bypass Vulnerability