When receiving calls using WhatsApp on Android, a stack allocation failed to properly account for the amount of data being passed in. An off-by-one error meant that data was written beyond the allocated space on the stack. This issue affects WhatsApp for Android starting in version 2.18.180 and was fixed in version 2.18.295. It also affects WhatsApp Business for Android starting in version v2.18.103 and was fixed in version v2.18.150.

Related CVEs

CVE-2018-6339

Key Information

GHSA ID

GHSA-wjm8-p3r4-7xgc

Published

May 24, 2022 4:48 PM

Last Modified

April 4, 2024 12:58 AM

CVSS Score

9.0 /10

Primary Ecosystem

Unknown

Primary Package

Unknown

GitHub Reviewed

✗ No

Dataset

Last updated: July 5, 2025 6:26 AM

Data from GitHub Advisory Database. This information is provided for research and educational purposes.