CVE-2018-6350 json
An out-of-bounds read was possible in WhatsApp due to incorrect parsing of RTP extension headers.
published 2019-06-14 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-18108
- cvss
- 9.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.7%
- EPSS 1.7% chance of exploitation in 30 days, percentile 77%
- public exploits
- 0
- none known
Summary
An out-of-bounds read was possible in WhatsApp due to incorrect parsing of RTP extension headers. This issue affects WhatsApp for Android prior to 2.18.276, WhatsApp Business for Android prior to 2.18.99, WhatsApp for iOS prior to 2.18.100.6, WhatsApp Business for iOS prior to 2.18.100.2, and WhatsApp for Windows Phone prior to 2.18.224.
Patch / fix
- Facebook WhatsApp for Android 2.18.276
- Facebook WhatsApp Business for Android 2.18.99
- Facebook WhatsApp for iOS 2.18.100.6
- Facebook WhatsApp Business for iOS 2.18.100.2
- Facebook WhatsApp for Windows Phone 2.18.224
Exploit prediction
1.69% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Affected products
- Facebook WhatsApp for Android
- Facebook WhatsApp Business for Android
- Facebook WhatsApp for iOS
- Facebook WhatsApp Business for iOS
- Facebook WhatsApp for Windows Phone
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
References
-
facebook.com
/security/advisories/cve-2018-6350/
third-party-advisory
-
securityfocus.com
/bid/108803
vdb-entry
Sources
- CVE List CVE-2018-6350
- NVD CVE-2018-6350
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.