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Known vulnerabilities in Facebook WhatsApp for iOS

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CVE Summary Score Published
CVE-2026-23866 Incomplete validation of AI rich response messages for Instagram Reels in WhatsApp for iOS v2.25.8.0 to v2.26.15.72… 4.3 Medium May 1, 2026
CVE-2025-55179 Incomplete validation of rich response messages in WhatsApp for iOS prior to v2.25.23.73, WhatsApp Business for iOS… 5.4 Medium Nov 18, 2025
CVE-2025-55177 Exploited Meta Platforms WhatsApp Incorrect Authorization Vulnerability 5.4 Medium Aug 29, 2025
CVE-2023-38538 A race condition in an event subsystem led to a heap use-after-free issue in established audio/video calls that could… 5.0 Medium Oct 4, 2023
CVE-2023-38537 A race condition in a network transport subsystem led to a heap use-after-free issue in established or unsilenced… 5.6 Medium Oct 4, 2023
CVE-2021-24042 The calling logic for WhatsApp for Android prior to v2.21.23, WhatsApp Business for Android prior to v2.21.23,… 9.8 Critical Jan 4, 2022
CVE-2021-24026 A missing bounds check within the audio decoding pipeline for WhatsApp calls in WhatsApp for Android prior to v2.21.3,… Not rated Apr 6, 2021
CVE-2020-1909 A use-after-free in a logging library in WhatsApp for iOS prior to v2.20.111 and WhatsApp Business for iOS prior to… Not rated Nov 3, 2020
CVE-2020-1908 Improper authorization of the Screen Lock feature in WhatsApp and WhatsApp Business for iOS prior to v2.20.100 could… Not rated Nov 3, 2020
CVE-2020-1907 A stack overflow in WhatsApp for Android prior to v2.20.196.16, WhatsApp Business for Android prior to v2.20.196.12,… Not rated Oct 6, 2020
CVE-2020-1904 A path validation issue in WhatsApp for iOS prior to v2.20.61 and WhatsApp Business for iOS prior to v2.20.61 could have… Not rated Oct 6, 2020
CVE-2020-1903 An issue when unzipping docx, pptx, and xlsx documents in WhatsApp for iOS prior to v2.20.61 and WhatsApp Business for… Not rated Oct 6, 2020
CVE-2020-1901 Receiving a large text message containing URLs in WhatsApp for iOS prior to v2.20.91.4 could have caused the application… Not rated Oct 6, 2020
CVE-2019-11931 A stack-based buffer overflow could be triggered in WhatsApp by sending a specially crafted MP4 file to a WhatsApp user Not rated Nov 14, 2019
CVE-2019-11927 An integer overflow in WhatsApp media parsing libraries allows a remote attacker to perform an out-of-bounds write on… Not rated Sep 27, 2019
CVE-2018-6350 An out-of-bounds read was possible in WhatsApp due to incorrect parsing of RTP extension headers Not rated Jun 14, 2019
CVE-2018-20655 When receiving calls using WhatsApp for iOS, a missing size check when parsing a sender-provided packet allowed for a… Not rated Jun 14, 2019
CVE-2019-3568 Exploited WhatsApp VOIP Stack Buffer Overflow Vulnerability 9.8 Critical May 14, 2019
CVE-2018-6344 A heap corruption in WhatsApp can be caused by a malformed RTP packet being sent after a call is established 7.5 High Dec 31, 2018

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