Microsoft Sharepoint Server 2019 vulnerabilities

CVE-2025-53770 [CRITICAL] CWE-502 CVE-2025-53770: Deserialization of untrusted data in on-premises Microsoft SharePoint Server allows an unauthorized Deserialization of untrusted data in on-premises Microsoft SharePoint Server allows an unauthorized attacker to execute code over a network. Microsoft is aware that an exploit for CVE-2025-53770 exists in the wild. Microsoft is preparing and fully testing a comprehensive update to address this vulnerability. In the meantime, please make sure that t

CVE-2023-29357 [CRITICAL] CWE-303 CVE-2023-29357: Microsoft SharePoint Server Elevation of Privilege Vulnerability Microsoft SharePoint Server Elevation of Privilege Vulnerability

CVE-2025-49704 [HIGH] CWE-94 CVE-2025-49704: Improper control of generation of code ('code injection') in Microsoft Office SharePoint allows an a Improper control of generation of code ('code injection') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

CVE-2026-50522 [CRITICAL] CWE-502 CVE-2026-50522: Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.

CVE-2026-45659 [HIGH] CWE-502 CVE-2026-45659: Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to ex Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

CVE-2025-49706 [MEDIUM] CWE-287 CVE-2025-49706: Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform sp Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.

CVE-2026-55040 [CRITICAL] CWE-1390 CVE-2026-55040: Weak authentication in Microsoft Office SharePoint allows an unauthorized attacker to bypass a secur Weak authentication in Microsoft Office SharePoint allows an unauthorized attacker to bypass a security feature over a network.

CVE-2023-24955 [HIGH] CWE-94 CVE-2023-24955: Microsoft SharePoint Server Remote Code Execution Vulnerability Microsoft SharePoint Server Remote Code Execution Vulnerability

CVE-2026-58644 [CRITICAL] CWE-502 CVE-2026-58644: Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.

CVE-2026-32201 [MEDIUM] CWE-20 CVE-2026-32201: Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to perform Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.

CVE-2026-56164 [CRITICAL] CWE-306 CVE-2026-56164: Missing authentication for critical function in Microsoft Office SharePoint allows an unauthorized a Missing authentication for critical function in Microsoft Office SharePoint allows an unauthorized attacker to elevate privileges over a network.

CVE-2026-20963 [CRITICAL] CWE-502 CVE-2026-20963: Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.

CVE-2024-38094 [HIGH] CWE-502 CVE-2024-38094: Microsoft SharePoint Remote Code Execution Vulnerability Microsoft SharePoint Remote Code Execution Vulnerability

CVE-2023-21716 [CRITICAL] CWE-190 CVE-2023-21716: Microsoft Word Remote Code Execution Vulnerability Microsoft Word Remote Code Execution Vulnerability

CVE-2025-53771 [MEDIUM] CWE-287 CVE-2025-53771: Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform sp Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.

CVE-2023-21742 [HIGH] CWE-284 CVE-2023-21742: Microsoft SharePoint Server Remote Code Execution Vulnerability Microsoft SharePoint Server Remote Code Execution Vulnerability

CVE-2026-63520 [HIGH] CWE-20 CVE-2026-63520: 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 over a network.

CVE-2024-38023 [HIGH] CWE-502 CVE-2024-38023: Microsoft SharePoint Server Remote Code Execution Vulnerability Microsoft SharePoint Server Remote Code Execution Vulnerability

CVE-2024-38024 [HIGH] CWE-502 CVE-2024-38024: Microsoft SharePoint Server Remote Code Execution Vulnerability Microsoft SharePoint Server Remote Code Execution Vulnerability

CVE-2022-22005 [HIGH] CWE-502 CVE-2022-22005: Microsoft SharePoint Server Remote Code Execution Vulnerability Microsoft SharePoint Server Remote Code Execution Vulnerability