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CRITICAL · 9.8

CVE-2018-20655

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...

Vulnerability 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.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
WhatsappWhatsapp< 2.18.90.24
WhatsappWhatsapp Business< 2.18.90.24

Related Weaknesses (CWE)

CWE-121CWE-787

References

FAQ

What is CVE-2018-20655?

CVE-2018-20655 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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...

How severe is CVE-2018-20655?

CVE-2018-20655 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2018-20655?

Check the references section above for vendor advisories and patch information. Affected products include: Whatsapp Whatsapp, Whatsapp Whatsapp Business.