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Critical Microsoft Office Vulnerability Enables Remote Code Execution

Critical Microsoft Office Vulnerability Enables Remote Code Execution

First seen 11 Mar 2026, 15:59 UTC • •

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ThreatCluster AI
ThreatCluster •March 15, 2026 at 09:31 UTC
  • •CVE-2026-26110 allows remote code execution in Microsoft Office.
  • •The vulnerability has a CVSS score of 8.4, indicating high severity.
  • •Users are strongly advised to apply the security updates released on March 10, 2026.

On March 10, 2026, Microsoft published security updates for a critical vulnerability in its Office suite, identified as CVE-2026-26110. This flaw allows unauthorized attackers to execute malicious code remotely on affected devices, posing a significant risk to users. The vulnerability carries a CVSS base score of 8.4, indicating high severity. Users of Microsoft Office are urged to apply the updates immediately to mitigate the risk of exploitation. The vulnerability affects a wide range of Office applications, making it crucial for organizations to prioritize patching. No known exploits have been reported yet, but the potential for widespread impact remains. Other vulnerabilities in Office were also mentioned, but CVE-2026-26110 is the most critical. Microsoft has not disclosed details about the specific attack vectors used. The current status is that patches are available, and users should implement them without delay.

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Timeline

2026-03-10
CVE-2026-26110 published and security updates released
2026-03-11
GBHackers and PCGamer report on the vulnerability
2026-03-12
Cybersecuritynews publishes updates on the vulnerability

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