CVE-2019-6743

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-06-03 · updated 2026-06-17
Weakness: CWE-787

Description

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Xiaomi Mi6 Browser prior to 10.4.0. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the WebAssembly.Instance method. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-7466.

Affected products

Mi6 Browser: before 10.4.0 — fixed in 10.4.0

How to fix

Upgrade to a fixed version: Mi6 Browser 10.4.0. Check the vendor advisory for mitigations.

References

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