# Microsoft SharePoint Enterprise Server 2016 vulnerabilities Source: https://junglewise.ai/threats/technologies/sharepoint-enterprise-server-2016 Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 11 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/sharepoint-enterprise-server-2016.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 34 vulnerabilities in Microsoft SharePoint Enterprise Server 2016: 0 in the last 7 days and 0 in the last 90 days, 6 of them critical and 6 exploited in the wild. The most recent, CVE-2026-62826, was published on 16 July 2026. ## Counts - Last 7 days: 0 - Last 30 days: 0 - Last 90 days: 0 - All time: 34 (6 critical, 6 exploited in the wild) ## About Microsoft SharePoint Enterprise Server 2016 Microsoft SharePoint server software for enterprise content management and collaboration. ## Latest Microsoft SharePoint Enterprise Server 2016 vulnerabilities - [CVE-2026-62826: Microsoft SharePoint cross-site scripting vulnerability](https://junglewise.ai/threats/cve-2026-62826-microsoft-sharepoint-cross-site-scripting-vulnerability) (medium, CVSS 4.6, published 16 Jul 2026) - [CVE-2026-58277: Microsoft SharePoint improper authorization privilege escalation](https://junglewise.ai/threats/cve-2026-58277-microsoft-sharepoint-improper-authorization-privilege-escalation) (high, CVSS 8.8, published 14 Jul 2026) - [CVE-2026-56192: Microsoft Office Out-of-bounds Read Information Disclosure](https://junglewise.ai/threats/cve-2026-56192-microsoft-office-out-of-bounds-read-information-disclosure) (medium, CVSS 5.5, published 14 Jul 2026) - [CVE-2026-56157: Microsoft SharePoint improper access control spoofing vulnerability](https://junglewise.ai/threats/cve-2026-56157-microsoft-sharepoint-improper-access-control-spoofing) (medium, CVSS 5.4, published 14 Jul 2026) - [CVE-2026-55142: Microsoft Office Word numeric truncation information disclosure](https://junglewise.ai/threats/cve-2026-55142-microsoft-office-word-numeric-truncation-information-disclosure) (medium, CVSS 5.5, published 14 Jul 2026) - [CVE-2026-55135: Microsoft Office SharePoint cross-site scripting](https://junglewise.ai/threats/cve-2026-55135-microsoft-office-sharepoint-cross-site-scripting) (medium, CVSS 4.6, published 14 Jul 2026) - [CVE-2026-55132: Microsoft Office Word double free local code execution](https://junglewise.ai/threats/cve-2026-55132-microsoft-office-word-double-free-local-code-execution) (high, CVSS 7.8, published 14 Jul 2026) - [CVE-2026-55130: Microsoft Office Word heap buffer overflow](https://junglewise.ai/threats/cve-2026-55130-microsoft-office-word-heap-buffer-overflow) (high, CVSS 7.8, published 14 Jul 2026) - [CVE-2026-55126: Microsoft SharePoint cross-site scripting vulnerability](https://junglewise.ai/threats/cve-2026-55126-microsoft-sharepoint-cross-site-scripting-vulnerability) (high, CVSS 7.3, published 14 Jul 2026) - [CVE-2026-55125: Microsoft Office heap overflow in code execution](https://junglewise.ai/threats/cve-2026-55125-microsoft-office-heap-overflow-in-code-execution) (high, CVSS 7.8, published 14 Jul 2026) - [CVE-2026-55121: Microsoft Office out-of-bounds read information disclosure](https://junglewise.ai/threats/cve-2026-55121-microsoft-office-out-of-bounds-read-information-disclosure) (medium, CVSS 5.5, published 14 Jul 2026) - [CVE-2026-55052: Microsoft SharePoint privilege escalation via missing authorization](https://junglewise.ai/threats/cve-2026-55052-microsoft-sharepoint-privilege-escalation-via-missing) (high, CVSS 8.8, published 14 Jul 2026) - [CVE-2026-55051: Microsoft SharePoint SSRF information disclosure](https://junglewise.ai/threats/cve-2026-55051-microsoft-sharepoint-ssrf-information-disclosure) (medium, CVSS 6.5, published 14 Jul 2026) - [CVE-2026-55050: Microsoft Office Word out-of-bounds read information disclosure](https://junglewise.ai/threats/cve-2026-55050-microsoft-office-word-out-of-bounds-read-information-disclosure) (medium, CVSS 5.5, published 14 Jul 2026) - [CVE-2026-55047: Microsoft Office Out-of-bounds Read Information Disclosure](https://junglewise.ai/threats/cve-2026-55047-microsoft-office-out-of-bounds-read-information-disclosure) (medium, CVSS 5.5, published 14 Jul 2026) - [CVE-2026-55045: Microsoft Office out-of-bounds read code execution](https://junglewise.ai/threats/cve-2026-55045-microsoft-office-out-of-bounds-read-code-execution) (high, CVSS 8.4, published 14 Jul 2026) - [CVE-2026-55040: Microsoft SharePoint weak authentication security feature bypass](https://junglewise.ai/threats/cve-2026-55040-microsoft-sharepoint-weak-authentication-security-feature-bypass) (critical, exploited in the wild, CVSS 9.1, published 14 Jul 2026) - [CVE-2026-55035: Microsoft Office out-of-bounds read information disclosure](https://junglewise.ai/threats/cve-2026-55035-microsoft-office-out-of-bounds-read-information-disclosure) (medium, CVSS 5.5, published 14 Jul 2026) - [CVE-2026-55034: Microsoft SharePoint cross-site scripting in web page generation](https://junglewise.ai/threats/cve-2026-55034-microsoft-sharepoint-cross-site-scripting-in-web-page-generation) (high, CVSS 7.3, published 14 Jul 2026) - [CVE-2026-55030: Microsoft SharePoint cross-site scripting vulnerability](https://junglewise.ai/threats/cve-2026-55030-microsoft-sharepoint-cross-site-scripting-vulnerability) (medium, CVSS 4.6, published 14 Jul 2026) - [CVE-2026-55028: Microsoft Office out-of-bounds read information disclosure](https://junglewise.ai/threats/cve-2026-55028-microsoft-office-out-of-bounds-read-information-disclosure) (medium, CVSS 5.5, published 14 Jul 2026) - [CVE-2026-55027: Microsoft Office out-of-bounds read information disclosure](https://junglewise.ai/threats/cve-2026-55027-microsoft-office-out-of-bounds-read-information-disclosure) (medium, CVSS 5.5, published 14 Jul 2026) - [CVE-2026-55026: Microsoft Office integer overflow information disclosure](https://junglewise.ai/threats/cve-2026-55026-microsoft-office-integer-overflow-information-disclosure) (medium, CVSS 6.2, published 14 Jul 2026) - [CVE-2026-55023: Microsoft Office out-of-bounds read information disclosure](https://junglewise.ai/threats/cve-2026-55023-microsoft-office-out-of-bounds-read-information-disclosure) (medium, CVSS 5.5, published 14 Jul 2026) - [CVE-2026-55021: Microsoft SharePoint cross-site scripting vulnerability](https://junglewise.ai/threats/cve-2026-55021-microsoft-sharepoint-cross-site-scripting-vulnerability) (high, CVSS 7.3, published 14 Jul 2026) ## Most severe Microsoft SharePoint Enterprise Server 2016 vulnerabilities - [CVE-2026-50522: Microsoft SharePoint remote code execution via unsafe deserialization](https://junglewise.ai/threats/cve-2026-50522-microsoft-sharepoint-remote-code-execution-via-unsafe) (critical, exploited in the wild, CVSS 9.8, published 14 Jul 2026) - [CVE-2026-58644: Microsoft SharePoint remote code execution via untrusted deserialization](https://junglewise.ai/threats/cve-2026-58644-microsoft-sharepoint-remote-code-execution-via-untrusted) (critical, exploited in the wild, CVSS 9.8, published 14 Jul 2026) - [CVE-2026-55040: Microsoft SharePoint weak authentication security feature bypass](https://junglewise.ai/threats/cve-2026-55040-microsoft-sharepoint-weak-authentication-security-feature-bypass) (critical, exploited in the wild, CVSS 9.1, published 14 Jul 2026) - [CVE-2026-45659: Microsoft Office SharePoint deserialization of untrusted data](https://junglewise.ai/threats/cve-2026-45659-microsoft-office-sharepoint-deserialization-of-untrusted-data) (critical, exploited in the wild, CVSS 8.8, published 22 May 2026) - [CVE-2025-49706: Microsoft SharePoint improper authentication vulnerability](https://junglewise.ai/threats/cve-2025-49706-microsoft-sharepoint-improper-authentication-vulnerability) (critical, exploited in the wild, CVSS 6.5, published 22 Jul 2025) - [CVE-2026-56164: Microsoft SharePoint missing authentication in critical function](https://junglewise.ai/threats/cve-2026-56164-microsoft-sharepoint-missing-authentication-in-critical-function) (critical, exploited in the wild, CVSS 5.3, published 14 Jul 2026) - [CVE-2026-58277: Microsoft SharePoint improper authorization privilege escalation](https://junglewise.ai/threats/cve-2026-58277-microsoft-sharepoint-improper-authorization-privilege-escalation) (high, CVSS 8.8, published 14 Jul 2026) - [CVE-2026-55052: Microsoft SharePoint privilege escalation via missing authorization](https://junglewise.ai/threats/cve-2026-55052-microsoft-sharepoint-privilege-escalation-via-missing) (high, CVSS 8.8, published 14 Jul 2026) - [CVE-2026-55045: Microsoft Office out-of-bounds read code execution](https://junglewise.ai/threats/cve-2026-55045-microsoft-office-out-of-bounds-read-code-execution) (high, CVSS 8.4, published 14 Jul 2026) - [CVE-2026-55132: Microsoft Office Word double free local code execution](https://junglewise.ai/threats/cve-2026-55132-microsoft-office-word-double-free-local-code-execution) (high, CVSS 7.8, published 14 Jul 2026) ## Vulnerabilities per week Nothing was published in the last eight weeks. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Other Microsoft technologies - [Microsoft Windows](https://junglewise.ai/threats/technologies/windows): 2,362 vulnerabilities - [Microsoft Windows 10](https://junglewise.ai/threats/technologies/windows-10): 589 vulnerabilities - [Microsoft Windows 11 24h2](https://junglewise.ai/threats/technologies/windows-11-24h2): 565 vulnerabilities - [Microsoft Windows 11 25h2](https://junglewise.ai/threats/technologies/windows-11-25h2): 534 vulnerabilities - [Microsoft Windows Server 2025](https://junglewise.ai/threats/technologies/windows-server-2025): 534 vulnerabilities - [Microsoft Windows Server 2022](https://junglewise.ai/threats/technologies/windows-server-2022): 528 vulnerabilities - [Microsoft Windows Server 2019](https://junglewise.ai/threats/technologies/windows-server-2019): 521 vulnerabilities - [Microsoft Windows Server 2012](https://junglewise.ai/threats/technologies/windows-server-2012): 517 vulnerabilities - [Microsoft Windows 11](https://junglewise.ai/threats/technologies/windows-11): 494 vulnerabilities - [Microsoft Windows Server 2016](https://junglewise.ai/threats/technologies/windows-server-2016): 476 vulnerabilities - [Microsoft Windows 10 1809](https://junglewise.ai/threats/technologies/windows-10-1809): 380 vulnerabilities - [Microsoft Windows 10 21h2](https://junglewise.ai/threats/technologies/windows-10-21h2): 373 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Microsoft SharePoint Enterprise Server 2016 vulnerabilities", https://junglewise.ai/threats/technologies/sharepoint-enterprise-server-2016, 11 November 2026.