CVE-2026-55054

Published Jul 14, 2026

Last updated 8 days ago

Overview

Description
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
Source
secure@microsoft.com
NVD status
Analyzed
Products
365_apps, excel, office, office_2021, office_2024, office_online_server, office_365

Risk scores

CVSS 3.1

Type
Secondary
Base score
6.5
Impact score
3.6
Exploitability score
2.8
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Severity
MEDIUM

Weaknesses

secure@microsoft.com
CWE-125

Social media

Hype score
Not currently trending

Configurations

References

Sources include official advisories and independent security research.