CVE-2026-44822

high Microsoft
CVSS v3 Base Score
8.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
EPSS Score
0.4%
Exploitation probability in 30 days
Top 67% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
Low
Availability
None
Published: June 9, 2026 (30 days ago)
Last Modified: June 19, 2026
Vendor: Microsoft
Source: NVD

Description

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

CWE

CWE-125

Affected Products

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

References

🔗 msrc.microsoft.com