CVE-2026-100208

HIGH CVSS 3.1: 7.5
Updated Sep 26, 2026
Microsoft
Parameter Value
CVSS 7.5 (HIGH)
Type CWE-190 (Integer Overflow)
Vendor Microsoft
Public PoC No

Integer overflow or wraparound in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Weakness Type (CWE)