{"id":86766,"date":"2026-03-24T15:42:35","date_gmt":"2026-03-24T15:42:35","guid":{"rendered":""},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-30T06:00:00","slug":"cve-2025-4276-arbitrary-memory-write-and-code-execution-vulnerability-in-usbcoredxe","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-4276-arbitrary-memory-write-and-code-execution-vulnerability-in-usbcoredxe\/","title":{"rendered":"CVE-2025-4276: Arbitrary Memory Write and Code Execution Vulnerability in UsbCoreDxe<\/strong>"},"content":{"rendered":"

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

The CVE-2025-4276 is a critical vulnerability found in UsbCoreDxe that allows an attacker to write arbitrary memory inside System Management Mode RAM (SMRAM) and execute arbitrary code at the System Management Mode (SMM) level. This vulnerability, if exploited, can cause severe damage including potential system compromise or data leakage, thus posing a significant threat to any system that uses UsbCoreDxe.<\/p>\n

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

CVE ID: CVE-2025-4276
\nSeverity: High (7.5 CVSS)
\nAttack Vector: Local
\nPrivileges Required: System Level
\nUser Interaction: None
\nImpact: Successful exploitation can lead to system compromise and potential 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

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