CVE-2026-26113
HIGHCVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2Tags
Description
Untrusted pointer dereference in Microsoft Office allows an unauthorized attacker to execute code locally.
Analysis
Unsafe pointer dereference in Microsoft Office, SharePoint Server, and 365 Apps enables local code execution with high privileges on affected systems. An attacker with local access can exploit this memory safety flaw to achieve complete system compromise including data theft and modification. …
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Remediation
Within 24 hours: inventory all Office installations across the organization and restrict access to Office applications where possible; communicate vulnerability details to end-users with guidance to avoid opening untrusted documents. Within 7 days: implement network segmentation to isolate critical systems, disable potentially vulnerable Office features (macros, embedded objects), and deploy endpoint detection and response (EDR) tools to monitor for exploitation attempts. …
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External POC / Exploit Code
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