{"id":80938,"date":"2025-10-03T01:42:27","date_gmt":"2025-10-03T01:42:27","guid":{"rendered":""},"modified":"2025-10-29T17:39:05","modified_gmt":"2025-10-29T23:39:05","slug":"cve-2025-53735-a-critical-use-after-free-vulnerability-in-microsoft-office-excel","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-53735-a-critical-use-after-free-vulnerability-in-microsoft-office-excel\/","title":{"rendered":"CVE-2025-53735: A Critical Use-After-Free Vulnerability in Microsoft Office Excel<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

We’re taking a deep dive into CVE-2025-53735, a significant vulnerability that poses a real threat to users of Microsoft Office Excel. This vulnerability is particularly concerning due to its potential to allow an unauthorized attacker to execute code locally on the affected system. Because Excel is widely used in organizations and individual systems across the world, the reach of this vulnerability is extensive and its impacts severe<\/a>.
\nThis vulnerability has been classified as ‘Use After Free,’ which is a type of issue where a program continues to use memory after it has been freed or de-allocated. Largely, this can lead to unpredictable behavior, including program crashes, incorrect outputs, and in severe cases – like this vulnerability – it can allow<\/a> an attacker to execute arbitrary code.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-53735
\nSeverity: High (7.8 CVSS Score)
\nAttack Vector: Local
\nPrivileges Required: None
\nUser Interaction: Required
\nImpact: Potential system<\/a> compromise or data leakage<\/p>\n

Affected Products<\/strong><\/p>

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\r\n \r\n \"Ameeba\r\n <\/a>\r\n Share secrets securely\r\n <\/h2>\r\n\r\n

\r\n Ameeba is private infrastructure for communication and sensitive work built on encrypted identity instead of exposed corporate identity systems.\r\n <\/p>\r\n\r\n

\r\n Passwords, credentials, confidential files, screenshots, internal discussions, sensitive AI context, and private coordination should not become exposed across ordinary communication platforms.\r\n <\/p>\r\n\r\n