PoC Exploit Released For Critical Microsoft Outlook (CVE-2025-21298) Zero-Click RCE Vulnerability
A new proof-of-concept (PoC) has been released for Microsoft Outlook zero-click remote code execution (RCE) vulnerability in Windows Object Linking and Embedding (OLE), identified as CVE-2025-21298. The PoC demonstrates memory corruption, shedding light on the flaw’s potential for exploitation stemming from a double-free condition in the ole32.dll component, which can lead to serious security risks […] The post PoC Exploit Released For Critical Microsoft Outlook (CVE-2025-21298) Zero-Click RCE Vulnerability appeared first on Cyber Security News.
A new proof-of-concept (PoC) has been released for Microsoft Outlook zero-click remote code execution (RCE) vulnerability in Windows Object Linking and Embedding (OLE), identified as CVE-2025-21298.
The PoC demonstrates memory corruption, shedding light on the flaw’s potential for exploitation stemming from a double-free condition in the ole32.dll component, which can lead to serious security risks if left unpatched.
This flaw, which scores a staggering 9.8 on the CVSS scale, was disclosed by cybersecurity expert Matt Johansen via a thread on X, formerly known as Twitter, highlighting the severity and potential impact of the vulnerability.