Description
vcodec2_hls_filter in libvoipCodec_v7a.so in the WeChat application through 7.0.3 for Android allows attackers to cause a denial of service (application crash) by replacing an emoji file (under the /sdcard/tencent/MicroMsg directory) with a crafted .wxgf file. The content of the replacement must be derived from the phone's IMEI. The crash occurs upon receiving a message that contains the replaced emoji.
Exploits (1)
References (3)
Core 3
Core References
Exploit, Technical Description x_refsource_misc
https://awakened1712.github.io/hacking/hacking-wechat-dos/
Third Party Advisory, VDB Entry x_refsource_misc
http://packetstormsecurity.com/files/152947/WeChat-7.0.4-Denial-Of-Service.html
Exploit, Third Party Advisory, VDB Entry exploit
x_refsource_exploit-db
https://www.exploit-db.com/exploits/46853
Scores
CVSS v3
5.5
EPSS
0.0114
EPSS Percentile
78.5%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Details
CWE
CWE-476
Status
published
Products (1)
tencent/wechat
< 7.0.3
Published
May 14, 2019
Tracked Since
Feb 18, 2026