CVE-2026-45455

low Microsoft
CVSS v3 Base Score
3.3
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
EPSS Score
0.6%
Exploitation probability in 30 days
Top 54% most likely to be exploited
Attack Characteristics
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Confidentiality
Low
Integrity
None
Availability
None
Published: June 9, 2026 (30 days ago)
Last Modified: July 9, 2026
Vendor: Microsoft
Source: NVD

Description

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

CWE

CWE-125

Affected Products

microsoft 365 appsmicrosoft excelmicrosoft microsoft 365microsoft office 2019microsoft office 2021microsoft office 2024microsoft office online server

References

🔗 msrc.microsoft.com