Use-After-Free Vulnerability in libexpat Affects Multiple Vendors
CVE-2022-43680
7.5HIGH
Key Information:
- Vendor
Libexpat Project
- Status
- Vendor
- CVE Published:
- 24 October 2022
Badges
👾 Exploit Exists🟡 Public PoC
What is CVE-2022-43680?
In libexpat version 2.4.9, a vulnerability exists due to a use-after-free condition arising from premature destruction of a shared Document Type Definition (DTD) during low memory situations. This could potentially allow an attacker to exploit the vulnerability and lead to unexpected behavior, including arbitrary code execution in vulnerable applications using this library.
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.