Multiple vulnerabilities in Microsoft SharePoint
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2025-29794 CVE-2025-29793 |
| CWE-ID | CWE-285 CWE-502 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
Microsoft SharePoint Server Server applications / Application servers Microsoft SharePoint Server Subscription Edition Server applications / Application servers Microsoft SharePoint Enterprise Server Server applications / Application servers |
| Vendor | Microsoft |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Improper Authorization
EUVDB-ID: #VU107287
Risk: Medium
CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2025-29794
CWE-ID:
CWE-285 - Improper Authorization
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to bypass authorization checks.
The vulnerability exists due to insufficient authorization controls in Microsoft SharePoint. A remote user can bypass authorization and execute arbitrary code on the target system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsMicrosoft SharePoint Server: 2019
Microsoft SharePoint Server Subscription Edition: All versions
Microsoft SharePoint Enterprise Server: 2016
CPE2.3- cpe:2.3:a:microsoft:microsoft_sharepoint_server:2019:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_sharepoint_server_subscription_edition:*:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_sharepoint_enterprise_server:2016:*:*:*:*:*:*:*
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29794
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Deserialization of Untrusted Data
EUVDB-ID: #VU107288
Risk: Low
CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2025-29793
CWE-ID:
CWE-502 - Deserialization of Untrusted Data
Exploit availability: No
DescriptionThe vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data in Microsoft SharePoint. A remote administrator can pass specially crafted data to the application and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsMicrosoft SharePoint Server: 2019
Microsoft SharePoint Server Subscription Edition: All versions
Microsoft SharePoint Enterprise Server: 2016
CPE2.3- cpe:2.3:a:microsoft:microsoft_sharepoint_server:2019:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_sharepoint_server_subscription_edition:*:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:microsoft_sharepoint_enterprise_server:2016:*:*:*:*:*:*:*
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29793
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
