CVE-2025-55177

Summary

Incomplete authorization of linked device synchronization messages in WhatsApp for iOS prior to v2.25.21.73, WhatsApp Business for iOS v2.25.21.78, and WhatsApp for Mac v2.25.21.78 could have allowed an unrelated user to trigger processing of content from an arbitrary URL on a target’s device. We assess that this vulnerability, in combination with an OS-level vulnerability on Apple platforms (CVE-2025-43300), may have been exploited in a sophisticated attack against specific targeted users.

Affected Software

VendorProductVersion RangeStatus
FacebookWhatsApp Desktop for Mac2.22.25.2 < 2.25.21.78affected
FacebookWhatsApp Business for iOS2.22.25.2 < 2.25.21.78affected
FacebookWhatsApp for iOS2.22.25.2 < 2.25.21.73affected

Weaknesses

  • Incorrect Authorization (CWE-863)

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: active
    • Automatable: no
    • Technical Impact: total

Additional References

References