Integer Overflow Vulnerability in Expat Affects libexpat
CVE-2021-46143

7.8HIGH

Key Information:

Vendor: Libexpat Project
Status: Libexpat
Vendor: CVE Published:; 6 January 2022

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👾 Exploit Exists🟡 Public PoC

What is CVE-2021-46143?

In the xmlparse.c module of Expat, an integer overflow vulnerability was discovered before version 2.4.3. This issue arises due to improper handling of the m_groupSize variable, leading to potential security risks when processing XML data. Successful exploitation could allow attackers to manipulate programs using the library, resulting in unexpected behaviors or system crashes. Organizations using affected versions of libexpat should upgrade to the latest release to mitigate these risks and ensure safer XML parsing capabilities.

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Exploit Proof of Concept (PoC)

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external_expat_AOSP10_r33_CVE-2021-46143
Created by nanopathi