CVE-2026-45459

Published Jun 9, 2026

Last updated 5 days ago

Overview

Description
Protection mechanism failure in Microsoft Office Excel allows an unauthorized attacker to bypass a security feature locally.
Source
secure@microsoft.com
NVD status
Analyzed
Products
365_apps, microsoft_365, office_2021, office_2024

Risk scores

CVSS 3.1

Type
Primary
Base score
3.3
Impact score
1.4
Exploitability score
1.8
Vector string
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Severity
LOW

Weaknesses

secure@microsoft.com
CWE-693

Social media

Hype score
Not currently trending

Configurations

References

Sources include official advisories and independent security research.