Microsoft Sharepoint Server 2019 vulnerabilities

CVE-2021-31966 [HIGH] CVE-2021-31966: Microsoft SharePoint Server Remote Code Execution Vulnerability Microsoft SharePoint Server Remote Code Execution Vulnerability

CVE-2026-70355 [HIGH] CWE-79 CVE-2026-70355: Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Of Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.

CVE-2026-55045 [HIGH] CWE-125 CVE-2026-55045: Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally. Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2025-62562 [HIGH] CWE-416 CVE-2025-62562: Use after free in Microsoft Office Outlook allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office Outlook allows an unauthorized attacker to execute code locally.

CVE-2026-20951 [HIGH] CWE-20 CVE-2026-20951: Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to execute Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to execute code locally.

CVE-2026-55055 [HIGH] CWE-121 CVE-2026-55055: Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.

CVE-2026-55038 [HIGH] CWE-121 CVE-2026-55038: Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.

CVE-2026-55134 [HIGH] CWE-121 CVE-2026-55134: Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.

CVE-2025-21348 [HIGH] CWE-285 CVE-2025-21348: Microsoft SharePoint Server Remote Code Execution Vulnerability Microsoft SharePoint Server Remote Code Execution Vulnerability

CVE-2020-17016 [HIGH] CVE-2020-17016: Microsoft SharePoint Server Spoofing Vulnerability Microsoft SharePoint Server Spoofing Vulnerability

CVE-2026-55034 [HIGH] CWE-79 CVE-2026-55034: Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Of Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

CVE-2026-55021 [HIGH] CWE-79 CVE-2026-55021: Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Of Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.

CVE-2025-53733 [HIGH] CWE-681 CVE-2025-53733: Incorrect conversion between numeric types in Microsoft Office Word allows an unauthorized attacker Incorrect conversion between numeric types in Microsoft Office Word allows an unauthorized attacker to execute code locally.

CVE-2025-62558 [HIGH] CWE-416 CVE-2025-62558: Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.

CVE-2025-62559 [HIGH] CWE-416 CVE-2025-62559: Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.

CVE-2026-55132 [HIGH] CWE-415 CVE-2026-55132: Double free in Microsoft Office Word allows an unauthorized attacker to execute code locally. Double free in Microsoft Office Word allows an unauthorized attacker to execute code locally.

CVE-2026-55033 [HIGH] CWE-122 CVE-2026-55033: Integer overflow or wraparound in Microsoft Office Word allows an unauthorized attacker to execute c Integer overflow or wraparound in Microsoft Office Word allows an unauthorized attacker to execute code locally.

CVE-2026-26113 [HIGH] CWE-822 CVE-2026-26113: 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-2021-31964 [HIGH] CVE-2021-31964: Microsoft SharePoint Server Spoofing Vulnerability Microsoft SharePoint Server Spoofing Vulnerability

CVE-2024-49070 [HIGH] CWE-502 CVE-2024-49070: Microsoft SharePoint Remote Code Execution Vulnerability Microsoft SharePoint Remote Code Execution Vulnerability