Out-of-Bounds Read Vulnerability in Microsoft Office Software

CVE-2026-55121

What is CVE-2026-55121?

An out-of-bounds read vulnerability in Microsoft Office can be exploited by an unauthorized attacker to gain access to sensitive information. This weakness allows attackers to read data beyond the intended buffer, potentially leading to information disclosure that could compromise user confidentiality. Organizations using affected Office products are advised to implement available patches promptly to mitigate risks associated with this vulnerability.

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