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CVE-2026-55049
7.8 HIGH
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Local (L)
- Attack Complexity (AC): Low (L)
- Privileges Required (PR): None (N)
- User Interaction (UI): Required (R)
- Scope (S): Unchanged (U)
- Confidentiality (C): High (H)
- Integrity (I): High (H)
- Availability (A): High (H)
- Exploit Code Maturity (E): Unproven (U)
- Remediation Level (RL): Official Fix (O)
- Report Confidence (RC): Confirmed (C)
- Modified Attack Vector (MAV): Local (L)
- Modified Attack Complexity (MAC): Low (L)
- Modified Privileges Required (MPR): None (N)
- Modified User Interaction (MUI): Required (R)
- Modified Confidentiality (MC): High (H)
- Modified Scope (MS): Unchanged (U)
- Modified Integrity (MI): High (H)
- Modified Availability (MA): High (H)
Activity log
- Created & dismissed (no matching packages found) suggestion
Microsoft Office Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
References
Affected products
Microsoft Office 2016
- <16.0.5561.1000
Microsoft Office 2019
- <https://aka.ms/OfficeSecurityReleases
Microsoft Office LTSC 2021
- <https://aka.ms/OfficeSecurityReleases
Microsoft Office LTSC 2024
- <https://aka.ms/OfficeSecurityReleases
Microsoft Office 365 for Mac
- <16.111.26071215
Microsoft 365 Apps for Enterprise
- <https://aka.ms/OfficeSecurityReleases
Microsoft Office LTSC for Mac 2021
- <16.111.26071215
Microsoft Office LTSC for Mac 2024
- <16.111.26071215