CVE-2019-11419 EXPLOIT
5.5
MEDIUM · CVSS 3.1 · EPSS 4% (pctl 90)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 5.5 (MEDIUM, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
| EPSS | 4.03% — more likely to be exploited than 90% of all CVEs |
| Weakness | CWE-476 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2019-05-14 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| tencent |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | WeChat for Android 7.0.4 - 'vcodec2_hls_filter' Denial of Service | 2019-05-16 |
References
- http://packetstormsecurity.com/files/152947/WeChat-7.0.4-Denial-Of-Service.html
- https://awakened1712.github.io/hacking/hacking-wechat-dos/
- https://www.exploit-db.com/exploits/46853
- http://packetstormsecurity.com/files/152947/WeChat-7.0.4-Denial-Of-Service.html
- https://awakened1712.github.io/hacking/hacking-wechat-dos/
- https://www.exploit-db.com/exploits/46853
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