CVE-2018-6339 describes a critical stack-based buffer overflow vulnerability in WhatsApp and WhatsApp Business for Android, affecting versions prior to 2.18.295 and 2.18.150 respectively. This flaw occurs when receiving calls, where an off-by-one error during stack allocation allows data to be written beyond its intended buffer. With a CVSS score of 9.8 (Critical), this vulnerability has a network attack vector, low attack complexity, and can lead to complete compromise of confidentiality, integrity, and availability. While no active exploitation, public exploit code, or significant community discussion has been observed, the high severity warrants prompt patching.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 2.18.180, < 2.18.295CPE matchmatch criteria | cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:android:*:* | ||
>= 2.18.103, < 2.18.150CPE matchmatch criteria | cpe:2.3:a:whatsapp:whatsapp_business:*:*:*:*:*:android:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.