7.5
High
CVE-2018-6344 A heap corruption in WhatsApp can be caused by a malformed RTP packet being sent after a call is established
Description
A heap corruption in WhatsApp can be caused by a malformed RTP packet being sent after a call is established. The vulnerability can be used to cause denial of service. It affects WhatsApp for Android prior to v2.18.293, WhatsApp for iOS prior to v2.18.93, and WhatsApp for Windows Phone prior to v2.18.172.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| WhatsApp for Android 2.18 | earliest → 2.18.293 | 2.18.293 |
| WhatsApp for iOS 2.18 | earliest → 2.18.93 | 2.18.93 |
| WhatsApp for Windows Phone 2.18 | earliest → 2.18.172 | 2.18.172 |
Other CVEs of WhatsApp for Android
The 23 CVEs of WhatsApp for Android →
CVE-2026-23866
Incomplete validation of AI rich response messages for Instagram Reels in WhatsApp for iOS v2.25.8.0 to v2.26.15.72…
4.3
Medium
CVE-2023-38538
A race condition in an event subsystem led to a heap use-after-free issue in established audio/video calls that could…
5.0
Medium
CVE-2023-38537
A race condition in a network transport subsystem led to a heap use-after-free issue in established or unsilenced…
5.6
Medium
CVE-2021-24042
The calling logic for WhatsApp for Android prior to v2.21.23, WhatsApp Business for Android prior to v2.21.23,…
9.8
Critical