Microsoft Sharepoint Server
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Recent Microsoft Sharepoint Server Security Advisories
| Advisory | Title | Published |
|---|---|---|
| CVE-2026-56157 | CVE-2026-56157 Microsoft SharePoint Server Spoofing Vulnerability | July 14, 2026 |
| CVE-2026-55034 | CVE-2026-55034 Microsoft SharePoint Server Spoofing Vulnerability | July 14, 2026 |
| CVE-2026-55021 | CVE-2026-55021 Microsoft SharePoint Server Spoofing Vulnerability | July 14, 2026 |
| CVE-2026-55126 | CVE-2026-55126 Microsoft SharePoint Server Spoofing Vulnerability | July 14, 2026 |
| CVE-2026-56164 | CVE-2026-56164 Microsoft SharePoint Server Elevation of Privilege Vulnerability | July 14, 2026 |
| CVE-2026-55016 | CVE-2026-55016 Microsoft SharePoint Server Spoofing Vulnerability | July 14, 2026 |
| CVE-2026-55020 | CVE-2026-55020 Microsoft SharePoint Server Spoofing Vulnerability | July 14, 2026 |
| CVE-2026-54108 | CVE-2026-54108 Microsoft SharePoint Server Spoofing Vulnerability | July 14, 2026 |
| CVE-2026-55051 | CVE-2026-55051 Microsoft SharePoint Server Information Disclosure Vulnerability | July 14, 2026 |
| CVE-2026-55019 | CVE-2026-55019 Microsoft SharePoint Server Spoofing Vulnerability | July 14, 2026 |
By the Year
In 2026 there have been 91 vulnerabilities in Microsoft Sharepoint Server with an average score of 6.7 out of ten. Last year, in 2025 Sharepoint Server had 35 security vulnerabilities published. That is, 56 more vulnerabilities have already been reported in 2026 as compared to last year. Last year, the average CVE base score was greater by 1.28
| Year | Vulnerabilities | Average Score |
|---|---|---|
| 2026 | 91 | 6.69 |
| 2025 | 35 | 7.97 |
| 2024 | 21 | 7.20 |
| 2023 | 27 | 7.53 |
| 2022 | 29 | 7.76 |
| 2021 | 53 | 7.09 |
| 2020 | 121 | 6.63 |
| 2019 | 48 | 6.78 |
| 2018 | 56 | 5.95 |
It may take a day or so for new Sharepoint Server vulnerabilities to show up in the stats or in the list of recent security vulnerabilities. Additionally vulnerabilities may be tagged under a different product or component name.
Recent Microsoft Sharepoint Server Security Vulnerabilities
Jul 2026: Microsoft SharePoint Server Spoofing Vulnerability
CVE-2026-62826
4.6 - Medium
- July 16, 2026
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.
XSS
Jul 2026: Microsoft Office Information Disclosure Vulnerability
CVE-2026-55121
5.5 - Medium
- July 14, 2026
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.
Out-of-bounds Read
Jul 2026: Microsoft Office Information Disclosure Vulnerability
CVE-2026-56192
5.5 - Medium
- July 14, 2026
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.
Out-of-bounds Read
Jul 2026: Microsoft SharePoint Server Spoofing Vulnerability
CVE-2026-56157
5.4 - Medium
- July 14, 2026
Improper access control in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
Authorization
Jul 2026: Microsoft SharePoint Server Spoofing Vulnerability
CVE-2026-55135
4.6 - Medium
- July 14, 2026
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.
XSS
Jul 2026: Microsoft SharePoint Elevation of Privilege Vulnerability
CVE-2026-55052
8.8 - High
- July 14, 2026
Missing authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
AuthZ
Jul 2026: Microsoft Word Remote Code Execution Vulnerability
CVE-2026-55130
7.8 - High
- July 14, 2026
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Heap-based Buffer Overflow
Jul 2026: Microsoft Word Remote Code Execution Vulnerability
CVE-2026-55128
7.8 - High
- July 14, 2026
Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Dangling pointer
Jul 2026: Microsoft Word Information Disclosure Vulnerability
CVE-2026-55142
5.5 - Medium
- July 14, 2026
Numeric truncation error in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
Numeric Truncation Error
Jul 2026: Microsoft SharePoint Server Security Feature Bypass Vulnerability
CVE-2026-55040
9.1 - Critical
- July 14, 2026
Weak authentication in Microsoft Office SharePoint allows an unauthorized attacker to bypass a security feature over a network.
1390
Jul 2026: Microsoft Word Remote Code Execution Vulnerability
CVE-2026-55134
7.8 - High
- July 14, 2026
Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Stack Overflow
Jul 2026: Microsoft SharePoint Server Information Disclosure Vulnerability
CVE-2026-55051
6.5 - Medium
- July 14, 2026
Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.
SSRF
Jul 2026: Microsoft SharePoint Server Spoofing Vulnerability
CVE-2026-55126
7.3 - High
- July 14, 2026
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.
XSS
Jul 2026: Microsoft Word Remote Code Execution Vulnerability
CVE-2026-55132
7.8 - High
- July 14, 2026
Double free in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Double-free
Jul 2026: Microsoft Word Remote Code Execution Vulnerability
CVE-2026-55038
7.8 - High
- July 14, 2026
Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Stack Overflow
Jul 2026: Microsoft Word Remote Code Execution Vulnerability
CVE-2026-55055
7.8 - High
- July 14, 2026
Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Stack Overflow
Jul 2026: Microsoft Office Information Disclosure Vulnerability
CVE-2026-55035
5.5 - Medium
- July 14, 2026
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.
Out-of-bounds Read
Jul 2026: Microsoft Word Remote Code Execution Vulnerability
CVE-2026-55127
7.8 - High
- July 14, 2026
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Heap-based Buffer Overflow
Jul 2026: Microsoft Word Information Disclosure Vulnerability
CVE-2026-55124
5.5 - Medium
- July 14, 2026
Improper validation of specified type of input in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
Improper Validation of Specified Type of Input
Jul 2026: Microsoft Word Remote Code Execution Vulnerability
CVE-2026-55033
7.8 - High
- July 14, 2026
Integer overflow or wraparound in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Integer Overflow or Wraparound
Jul 2026: Microsoft Word Remote Code Execution Vulnerability
CVE-2026-55032
7.8 - High
- July 14, 2026
Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Dangling pointer
Jul 2026: Microsoft Word Information Disclosure Vulnerability
CVE-2026-55050
5.5 - Medium
- July 14, 2026
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
Out-of-bounds Read
Jul 2026: Microsoft Office Remote Code Execution Vulnerability
CVE-2026-55045
8.4 - High
- July 14, 2026
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally.
Out-of-bounds Read
Jul 2026: Microsoft Office Information Disclosure Vulnerability
CVE-2026-55047
5.5 - Medium
- July 14, 2026
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.
Out-of-bounds Read
Jul 2026: Microsoft Office Information Disclosure Vulnerability
CVE-2026-55028
5.5 - Medium
- July 14, 2026
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.
Out-of-bounds Read
Jul 2026: Microsoft SharePoint Server Spoofing Vulnerability
CVE-2026-55034
7.3 - High
- July 14, 2026
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.
XSS
Jul 2026: Microsoft Office Information Disclosure Vulnerability
CVE-2026-55027
5.5 - Medium
- July 14, 2026
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.
Out-of-bounds Read
Jul 2026: Microsoft Office Information Disclosure Vulnerability
CVE-2026-55026
6.2 - Medium
- July 14, 2026
Integer overflow or wraparound in Microsoft Office allows an unauthorized attacker to disclose information locally.
Integer Overflow or Wraparound
Jul 2026: Microsoft Office Remote Code Execution Vulnerability
CVE-2026-55125
7.8 - High
- July 14, 2026
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
Heap-based Buffer Overflow
Jul 2026: Microsoft SharePoint Server Spoofing Vulnerability
CVE-2026-55030
4.6 - Medium
- July 14, 2026
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.
XSS
Jul 2026: Microsoft Office Information Disclosure Vulnerability
CVE-2026-55023
5.5 - Medium
- July 14, 2026
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.
Out-of-bounds Read
Jul 2026: Microsoft SharePoint Server Spoofing Vulnerability
CVE-2026-55021
7.3 - High
- July 14, 2026
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.
XSS
Jul 2026: Microsoft SharePoint Server Spoofing Vulnerability
CVE-2026-55020
4.6 - Medium
- July 14, 2026
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.
XSS
Jul 2026: Microsoft SharePoint Server Spoofing Vulnerability
CVE-2026-55019
4.6 - Medium
- July 14, 2026
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.
XSS
Jul 2026: Microsoft SharePoint Server Spoofing Vulnerability
CVE-2026-55016
4.6 - Medium
- July 14, 2026
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.
XSS
Jul 2026: Microsoft SharePoint Remote Code Execution Vulnerability
CVE-2026-58644
9.8 - Critical
- July 14, 2026
Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.
Marshaling, Unmarshaling
Jul 2026: Microsoft SharePoint Remote Code Execution Vulnerability
CVE-2026-50522
9.8 - Critical
- July 14, 2026
Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.
Marshaling, Unmarshaling
Jul 2026: Microsoft SharePoint Server Elevation of Privilege Vulnerability
CVE-2026-56164
5.3 - Medium
- July 14, 2026
Missing authentication for critical function in Microsoft Office SharePoint allows an unauthorized attacker to elevate privileges over a network.
Missing Authentication for Critical Function
Jul 2026: Microsoft SharePoint Server Spoofing Vulnerability
CVE-2026-54108
6.5 - Medium
- July 14, 2026
External control of file name or path in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
External Control of File Name or Path
Jun 2026: Microsoft SharePoint Server Spoofing Vulnerability
CVE-2026-48562
4.6 - Medium
- June 09, 2026
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.
XSS
Jun 2026: Microsoft SharePoint Server Spoofing Vulnerability
CVE-2026-48560
5.4 - Medium
- June 09, 2026
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
Marshaling, Unmarshaling
Jun 2026: Microsoft SharePoint Elevation of Privilege Vulnerability
CVE-2026-45484
8.8 - High
- June 09, 2026
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
Marshaling, Unmarshaling
Jun 2026: Microsoft SharePoint Server Spoofing Vulnerability
CVE-2026-45481
7.3 - High
- June 09, 2026
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.
XSS
Jun 2026: Microsoft SharePoint Server Spoofing Vulnerability
CVE-2026-47640
4.6 - Medium
- June 09, 2026
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.
XSS
Jun 2026: Microsoft SharePoint Server Spoofing Vulnerability
CVE-2026-47634
7.3 - High
- June 09, 2026
Improper neutralization of special elements in output used by a downstream component ('injection') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
Injection
Jun 2026: Microsoft SharePoint Server Spoofing Vulnerability
CVE-2026-45465
5.4 - Medium
- June 09, 2026
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
XSS
Jun 2026: Microsoft SharePoint Server Spoofing Vulnerability
CVE-2026-45464
5.4 - Medium
- June 09, 2026
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
XSS
Jun 2026: Microsoft SharePoint Server Spoofing Vulnerability
CVE-2026-45462
4.6 - Medium
- June 09, 2026
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.
XSS
Jun 2026: Microsoft SharePoint Remote Code Execution Vulnerability
CVE-2026-45454
6.5 - Medium
- June 09, 2026
Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Directory traversal
Jun 2026: Microsoft SharePoint Server Spoofing Vulnerability
CVE-2026-33113
5.4 - Medium
- June 09, 2026
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
XSS
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