CVE-2022-43591: qt project qt Heap-based Buffer Overflow

Vulnerability summary

CVE-2022-43591 is a high (CVSS 8.8) Heap-based Buffer Overflow vulnerability in qt project qt. EPSS estimates a 1.14% chance of exploitation in the next 30 days, higher than 66.2% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 12-01-2023
   PublishedVulnerability first disclosed.
2. 07-04-2025
   Last modifiedVulnerability information updated.

Description

A buffer overflow vulnerability exists in the QML QtScript Reflect API of Qt Project Qt 6.3.2. A specially-crafted javascript code can trigger an out-of-bounds memory access, which can lead to arbitrary code execution. Target application would need to access a malicious web page to trigger this vulnerability.

• CWE-122Heap-based Buffer OverflowA heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().