365 Apps CVE-2026-26107
HIGHCVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionNVD
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
AnalysisAI
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. [CVSS 7.8 HIGH]
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RemediationAI
Within 24 hours: Inventory all Excel deployments and identify high-risk user populations (finance, legal, external-facing roles). Within 7 days: Implement compensating controls (disable macros, restrict file types, deploy application whitelisting) and communicate risks to users. …
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