Microsoft 365 Apps vulnerabilities
🔔 Create alert RSS Version checker
Published CVEs affecting Microsoft 365 Apps: 575 record(s), with affected versions and fixes.cpe:2.3:a:microsoft:365_apps
CVE-2026-21261
Medium · 5.5
CWE-125 Feb 10, 2026
Microsoft Excel Information Disclosure Vulnerability
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
CVE-2026-21260
High · 7.5
CWE-200 Feb 10, 2026
Microsoft Outlook Spoofing Vulnerability
Exposure of sensitive information to an unauthorized actor in Microsoft Office Outlook allows an unauthorized attacker to perform spoofing over a network.
CVE-2026-21259
High · 7.8
CWE-787 Feb 10, 2026
Microsoft Excel Elevation of Privilege Vulnerability
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to elevate privileges locally.
CVE-2026-21258
Medium · 5.5
CWE-20 Feb 10, 2026
Microsoft Excel Information Disclosure Vulnerability
Improper input validation in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
CVE-2026-21509
High · 7.8
KEV High · 62 Public exploit CWE-807 Jan 26, 2026
Microsoft Office Security Feature Bypass Vulnerability
Reliance on untrusted inputs in a security decision in Microsoft Office allows an unauthorized attacker to bypass a security feature locally.
CVE-2026-20957
High · 7.8
CWE-122 Jan 13, 2026
Microsoft Excel Remote Code Execution Vulnerability
Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-20956
High · 7.8
CWE-822 Jan 13, 2026
Microsoft Excel Remote Code Execution Vulnerability
Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-20955
High · 7.8
CWE-822 Jan 13, 2026
Microsoft Excel Remote Code Execution Vulnerability
Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-20953
High · 8.4
CWE-416 Jan 13, 2026
Microsoft Office Remote Code Execution Vulnerability
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
CVE-2026-20952
High · 8.4
CWE-416 Jan 13, 2026
Microsoft Office Remote Code Execution Vulnerability
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
CVE-2026-20950
High · 7.8
CWE-416 Jan 13, 2026
Microsoft Excel Remote Code Execution Vulnerability
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-20949
High · 7.8
CWE-284 Jan 13, 2026
Microsoft Excel Security Feature Bypass Vulnerability
Improper access control in Microsoft Office Excel allows an unauthorized attacker to bypass a security feature locally.
CVE-2026-20948
High · 7.8
CWE-822 Jan 13, 2026
Microsoft Word Remote Code Execution Vulnerability
Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally.
CVE-2026-20946
High · 7.8
CWE-125 Jan 13, 2026
Microsoft Excel Remote Code Execution Vulnerability
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-20944
High · 8.4
CWE-125 Jan 13, 2026
Microsoft Word Remote Code Execution Vulnerability
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to execute code locally.
CVE-2025-62564
High · 7.8
CWE-125 Dec 9, 2025
Microsoft Excel Remote Code Execution Vulnerability
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2025-62563
High · 7.8
CWE-416 Dec 9, 2025
Microsoft Excel Remote Code Execution Vulnerability
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2025-62562
High · 7.8
CWE-416 Dec 9, 2025
Microsoft Outlook Remote Code Execution Vulnerability
Use after free in Microsoft Office Outlook allows an unauthorized attacker to execute code locally.
CVE-2025-62561
High · 7.8
CWE-822 Dec 9, 2025
Microsoft Excel Remote Code Execution Vulnerability
Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2025-62560
High · 7.8
CWE-126 Dec 9, 2025
Microsoft Excel Remote Code Execution Vulnerability
Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2025-62559
High · 7.8
CWE-416 Dec 9, 2025
Microsoft Word Remote Code Execution Vulnerability
Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.
CVE-2025-62558
High · 7.8
CWE-416 Dec 9, 2025
Microsoft Word Remote Code Execution Vulnerability
Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.
CVE-2025-62557
High · 7.8
CWE-416 Dec 9, 2025
Microsoft Office Remote Code Execution Vulnerability
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
CVE-2025-62556
High · 7.8
CWE-822 Dec 9, 2025
Microsoft Excel Remote Code Execution Vulnerability
Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2025-62553
High · 7.8
CWE-416 Dec 9, 2025
Microsoft Excel Remote Code Execution Vulnerability
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.