CVE-2026-45459

LowCVSS 3.3/10Last modified Jul 23, 2026

Description

Protection mechanism failure in Microsoft Office Excel allows an unauthorized attacker to bypass a security feature locally.

Metrics

CVSS 3.1 3.3/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Weakness enumeration

CWE-693

Affected software

VendorProductVersions
MicrosoftMicrosoft 365 Apps for Enterprise>= 16.0.1, < https://aka.ms/OfficeSecurityReleases
MicrosoftMicrosoft Office 365 for Mac>= 1.0.0, < 16.110.26061317
MicrosoftMicrosoft Office LTSC 2024>= 16.0.0, < https://aka.ms/OfficeSecurityReleases
MicrosoftMicrosoft Office LTSC for Mac 2021>= 16.0.1, < 16.110.26061317
MicrosoftMicrosoft Office LTSC for Mac 2024>= 16.0.0, < 16.110.26061317

References

Timeline

Published
Jun 9, 2026
Last modified
Jul 23, 2026
NVD status
Analyzed

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CVE-2026-45459: Low severity, CVSS 3.3 | Vulnix