CVE-2018-20655
CRITICAL
9.8
CVSS Score
Published: June 14, 2019 at 05:02 PM UTC
Updated: June 17, 2026 at 01:53 AM UTC
2 products affected across 1 vendorWhatsAppWhatsapp Business
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Severity
CRITICAL9.8
Exploit prediction
EPSS 2%
Description
When receiving calls using WhatsApp for iOS, a missing size check when parsing a sender-provided packet allowed for a stack-based overflow. This issue affects WhatsApp for iOS prior to v2.18.90.24 and WhatsApp Business for iOS prior to v2.18.90.24.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 2.18.90.242.18.90.24
Affected range stops below 2.18.90.24, so it looks safe — our inference, not a vendor statement
v < 2.18.90.242.18.90.24
Affected range stops below 2.18.90.24, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (2)
VDB Entryx_refsource_BIDThird Party Advisory
Source: [email protected]
http://www.securityfocus.com/bid/108805x_refsource_MISCThird Party Advisory
Source: [email protected]
https://www.facebook.com/security/advisories/cve-2018-20655/CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-121CWE-787
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