Product by Facebook

    Whatsapp For IOS

    19 known vulnerabilities in Whatsapp For IOS (Facebook), 2 of them actively exploited (CISA KEV).

    Key figures

    19

    Vulnerabilities

    2

    Actively exploited (KEV)

    0

    Used by ransomware

    8

    Critical

    Vulnerabilities

    Actively exploited vulnerabilities (CISA KEV) first, then by priority. Click a column header to re-sort the table.

    Vulnerabilities in Whatsapp For IOS (Facebook)
    CriticalCVE-2019-3568

    WhatsApp VOIP Stack Buffer Overflow Vulnerability

    In CISA KEValso in 6 other products

    		9.8
    CriticalCVE-2025-55177

    Meta Platforms WhatsApp Incorrect Authorization Vulnerability

    In CISA KEValso in 4 other products

    		5.4
    CriticalCVE-2020-1909

    Facebook WhatsApp Business for iOS: Use After Free

    also in 3 other products

    		9.8
    CriticalCVE-2018-20655

    Facebook WhatsApp for iOS: Stack-based Buffer Overflow

    also in 3 other products

    		9.8
    CriticalCVE-2020-1907

    Facebook WhatsApp: Out-of-bounds Write

    also in 5 other products

    		9.8
    CriticalCVE-2018-6350

    Facebook WhatsApp: Out-of-bounds Read

    also in 6 other products

    		9.8
    CriticalCVE-2021-24026

    Facebook WhatsApp: Out-of-bounds Write

    also in 5 other products

    		9.8
    HighCVE-2018-6344

    Facebook WhatsApp for Android: Heap-based Buffer Overflow

    also in 3 other products

    		7.5
    CriticalCVE-2021-24042

    Facebook WhatsApp: Heap-based Buffer Overflow

    also in 5 other products

    		9.8
    HighCVE-2019-11931

    Facebook WhatsApp: Stack-based Buffer Overflow

    also in 6 other products

    		7.8
    HighCVE-2019-11927

    Facebook WhatsApp for Android: Integer Overflow or Wraparound

    also in 2 other products

    		7.8
    MediumCVE-2020-1904

    Facebook WhatsApp for iOS: Relative Path Traversal

    also in 3 other products

    		5.5
    MediumCVE-2020-1901

    Facebook WhatsApp for iOS: Uncontrolled Resource Consumption

    also in 1 other product

    		5.3
    MediumCVE-2026-23866

    Facebook WhatsApp for Android: Improper Verification of Source of a Communication Channel

    also in 2 other products

    		4.3
    MediumCVE-2020-1903

    Facebook WhatsApp for iOS: Uncontrolled Resource Consumption

    also in 3 other products

    		5.5
    MediumCVE-2025-55179

    Facebook WhatsApp Business for iOS: security vulnerability

    also in 4 other products

    		5.4
    MediumCVE-2023-38537

    Facebook WhatsApp: Use-After-Free

    also in 6 other products

    		5.6
    MediumCVE-2023-38538

    Facebook WhatsApp: Use-After-Free

    also in 6 other products

    		5.0
    MediumCVE-2020-1908

    Facebook WhatsApp Business for iOS: Improper Authorization

    also in 3 other products

    		4.6

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