Description
Improper validation of specified type of input in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
Affected products
microsoft: 365 apps; microsoft: microsoft 365; microsoft: office 2019; microsoft: office 2021; microsoft: office 2024; microsoft: office online server; microsoft: sharepoint server; microsoft: word
References1
- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55124 Vendor AdvisoryPatch
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - EPSS — exploit probability
- 1% percentile: 49 · as of 15 November 2026
- CWE
- CWE-20CWE-1287
Could this be exploited in your environment?
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