CVE-2026-50665: CWE-125: Out-of-bounds Read in Microsoft Microsoft 365 Apps for Enterprise
CVE-2026-50665 is an out-of-bounds read vulnerability in Microsoft 365 Apps for Enterprise that allows an unauthorized attacker to locally disclose information. The vulnerability has a high severity with a CVSS score of 7.8. An official fix is available from Microsoft. The affected version explicitly identified is 16.0.1. This vulnerability impacts confidentiality, integrity, and availability. The vendor manages remediation for this cloud-hosted service, and users should apply the official fix as advised.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-50665) involves an out-of-bounds read in Microsoft 365 Apps for Enterprise, which could allow an unauthorized local attacker to disclose sensitive information. The CVSS 3.1 vector indicates low attack complexity, no privileges required, but user interaction is needed. The impact affects confidentiality, integrity, and availability with high severity. Microsoft has published an official fix and manages remediation for this cloud service. The affected version is 16.0.1.
Potential Impact
Successful exploitation of this vulnerability can lead to local information disclosure, compromising confidentiality. The CVSS vector also indicates impacts to integrity and availability, suggesting potential broader effects on the application. However, no known exploits are reported in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Since this is a cloud-hosted service, Microsoft manages remediation server-side. Users should follow the vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50665 to ensure their environment is updated and protected.
CVE-2026-50665: CWE-125: Out-of-bounds Read in Microsoft Microsoft 365 Apps for Enterprise
Description
CVE-2026-50665 is an out-of-bounds read vulnerability in Microsoft 365 Apps for Enterprise that allows an unauthorized attacker to locally disclose information. The vulnerability has a high severity with a CVSS score of 7.8. An official fix is available from Microsoft. The affected version explicitly identified is 16.0.1. This vulnerability impacts confidentiality, integrity, and availability. The vendor manages remediation for this cloud-hosted service, and users should apply the official fix as advised.
CVSS v3.1
Score 7.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-50665) involves an out-of-bounds read in Microsoft 365 Apps for Enterprise, which could allow an unauthorized local attacker to disclose sensitive information. The CVSS 3.1 vector indicates low attack complexity, no privileges required, but user interaction is needed. The impact affects confidentiality, integrity, and availability with high severity. Microsoft has published an official fix and manages remediation for this cloud service. The affected version is 16.0.1.
Potential Impact
Successful exploitation of this vulnerability can lead to local information disclosure, compromising confidentiality. The CVSS vector also indicates impacts to integrity and availability, suggesting potential broader effects on the application. However, no known exploits are reported in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Since this is a cloud-hosted service, Microsoft manages remediation server-side. Users should follow the vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50665 to ensure their environment is updated and protected.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-05T14:33:50.831Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Is Cloud Service
- true
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50665","vendor":"Microsoft"}]
Threat ID: 6a5676a968715ace43f096e3
Added to database: 07/14/2026, 17:49:29 UTC
Last enriched: 07/14/2026, 22:48:47 UTC
Last updated: 07/15/2026, 03:07:35 UTC
Views: 2
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