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WhatsApp spyware campaign chaining CVE-2025-55177 and CVE-2025-43300

Campaign
First reported
Last updated
Happening score
H score 23
2 unique sources, 2 articles

Summary

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A targeted spyware campaign hit specific WhatsApp users, increasing the risk of covert device surveillance. The operation chained CVE-2025-55177 in WhatsApp with CVE-2025-43300 in Apple software, making the attack path more effective against high-value devices. The activity was described as extremely sophisticated and focused on a limited cohort rather than broad consumer targeting. The timeframe points to late August to September 2025, and the same exploit chain was later linked to attacks against Samsung Android devices.

Cases

Targeted spyware chain across WhatsApp and Apple Image I/O (2)

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Timeline

  1. 16.09.2025 15:16 1 articles · 10mo ago

    Apple patches CVE-2025-43300 on newer iPhone, iPad, and Mac releases

    Mitigation Patch Update

    Apple patched CVE-2025-43300 on August 20, 2025 for iOS 18.6.2, iPadOS 18.6.2, iPadOS 17.7.10, and macOS Sequoia 15.6.1, Sonoma 14.7.8, and Ventura 13.7.8, addressing an Image I/O out-of-bounds write that could let a malicious image file cause memory corruption.

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  2. 16.09.2025 15:16 3 articles · 10mo ago

    WhatsApp users are warned about a targeted spyware campaign chaining CVE-2025-55177 and CVE-2025-43300

    Initial Disclosure

    Apple backported CVE-2025-43300 fixes to older iPhones and iPads running iOS 15.8.5 / 16.7.12 and iPadOS 15.8.5 / 16.7.12, and WhatsApp users were warned that their devices were targeted in an advanced spyware campaign that chained CVE-2025-55177 with Apple's zero-day against specific targeted individuals.

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