"Notably, the Preview Pane can serve as an attack vector, meaning exploitation may occur simply by viewing a malicious file. When a simple document preview can trigger code execution, attackers gain a doorway directly into the system."
"A single memory handling mistake inside Office can allow attackers to run their own code, turning an ordinary document into a potential system takeover... Even a single malicious document could compromise an endpoint and give attackers a foothold inside the organization."
Microsoft released approximately 80 security patches in March, addressing vulnerabilities across Excel, SQL servers, and other systems. Two critical Office flaws (CVE-2026-26113 and CVE-2026-26110) pose significant risks by allowing attackers to execute malicious code simply by having users view compromised documents in the Preview Pane. These vulnerabilities represent high-priority concerns because exploitation requires minimal user interaction—merely viewing a rigged file can trigger code execution. Memory handling errors in Office can enable attackers to gain system access and establish organizational footholds. While no active zero-day attacks were exploited this month, the breadth of patches underscores ongoing security threats to both individual PCs and corporate infrastructure.
Read at TechRepublic
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