Microsoft Outlook Security Feature Bypass Vulnerability
CVE-2023-35311

8.8HIGH

Key Information:

Vendor
Microsoft
Status
Microsoft 365 Apps For Enterprise
Microsoft Office Ltsc 2021
Microsoft Office 2019
Microsoft Outlook 2016
Vendor
CVE Published:
11 July 2023

Badges

👾 Exploit Exists🟣 EPSS 39%🦅 CISA Reported

Summary

A security feature bypass vulnerability exists in Microsoft Outlook, allowing attackers to bypass intended security controls. This can enable unauthorized access or manipulation of sensitive data within the application, potentially leading to severe security implications for users. Users are encouraged to implement recommended updates and follow security best practices to mitigate the risks associated with this vulnerability.

CISA Reported

CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace

The CISA's recommendation is: Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

Affected Version(s)

Microsoft 365 Apps for Enterprise 32-bit Systems 16.0.1

Microsoft Office 2019 32-bit Systems 19.0.0

Microsoft Office LTSC 2021 32-bit Systems 16.0.1

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

EPSS Score

39% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • 👾

    Exploit known to exist

  • 🦅

    CISA Reported

  • Vulnerability published

  • Vulnerability Reserved

.