PublicCVE

CVE-2026-44817

HIGH7.8JSON exportCreate alert

Description

Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVSS breakdown

CVSS 3.1
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
E
Unchanged
RL
O
RC
Changed

Affected products