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CVE-2019-11419

MediumPublished

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...

Published: May 14, 2019
Updated: Aug 4, 2024
Assigning CNA: mitre
Evidence observed: May 16, 2019

Primary CVSS

5.5/ 10Medium

nvd · CVSS 3.1

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS probability estimate

4.0%

Low · next 30 days

Percentile: 90.2%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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.

Sources

WeChat for Android 7.0.4 - 'vcodec2_hls_filter' Denial of ServiceExploit
Hong Nhat Pham · android · May 16, 2019

Responsible use

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