VULNERABILITY INTELLIGENCE

CVE-2020-27874

CVSS score8.8 HIGH
EPSS probability2.09%
CISA KEVNot currently listed
Published2021-02-10
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Description

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Tencent WeChat 7.0.18. 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 WXAM Decoder. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-11580.

Weakness classification

  • zdi-disclosures@trendmicro.com: CWE-119
  • nvd@nist.gov: CWE-119

Primary references