CVE-2019-17151

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-01-07 · updated 2026-06-17
Weakness: CWE-356

Description

This vulnerability allows remote attackers redirect users to an external resource on affected installations of Tencent WeChat Prior to 7.0.9. User interaction is required to exploit this vulnerability in that the target must be within a chat session together with the attacker. The specific flaw exists within the parsing of a users profile. The issue lies in the failure to properly validate a users name. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process. Was ZDI-CAN-9302.

Affected products

Tencent WeChat: before 7.0.9 — fixed in 7.0.9

How to fix

Upgrade to a fixed version: Tencent WeChat 7.0.9. Check the vendor advisory for mitigations.

References

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