CVE-2026-45459: low-severity vulnerability in Microsoft 365 Apps for Enterprise
Microsoft Excel Security Feature Bypass Vulnerability
Published · Updated
8Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 3.3epss 0.5%
exploitation probability
0.5%top 61% of all CVEs
observed exploitation
nono source reports it
Protection mechanism failure in Microsoft Office Excel allows an unauthorized attacker to bypass a security feature locally.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C
Affected products
Microsoft · Microsoft 365 Apps for EnterpriseMicrosoft · Microsoft Office 365 for MacMicrosoft · Microsoft Office LTSC 2024Microsoft · Microsoft Office LTSC for Mac 2021Microsoft · Microsoft Office LTSC for Mac 2024Related CVEs — Microsoft 365 Apps for Enterprise
In the same product, most dangerous first.
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