CVE-2018-20655 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.0054.

Key SSVC decision points have not yet been added.

Vendors	Products
Whatsapp	Whatsapp Whatsapp Business

Configuration 1 [-]

OR	cpe:2.3:a:whatsapp:whatsapp::::::iphone_os::*
	cpe:2.3:a:whatsapp:whatsapp_business::::::iphone_os::*

No data.

No data.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
http://www.securityfocus.com/bid/108805
https://www.facebook.com/security/advisories/cve-2018-20655/

History

Wed, 03 Sep 2025 17:45:00 +0000

Type	Values Removed	Values Added
First Time appeared		Whatsapp whatsapp Business
CPEs	cpe:2.3:a:whatsapp:whatsapp:::::business:iphone_os::	cpe:2.3:a:whatsapp:whatsapp_business::::::iphone_os::*
Vendors & Products		Whatsapp whatsapp Business

MITRE

Status: PUBLISHED

Assigner: facebook

Published: 2019-06-14T17:02:57

Updated: 2024-08-05T12:05:17.701Z

Reserved: 2019-01-02T00:00:00

Link: CVE-2018-20655

Vulnrichment

No data.

NVD

Status : Modified

Published: 2019-06-14T17:29:01.050

Modified: 2025-09-03T17:36:53.303

Link: CVE-2018-20655

Redhat

No data.

OpenCVE Enrichment

No data.

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