5.4
Medium
CVE-2025-55177 Meta Platforms WhatsApp Incorrect Authorization Vulnerability
Active exploitation observed
· CISA KEV catalogue
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Ransomware campaigns
Not observed so far
Weakness
CWE-863
Description
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 products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| WhatsApp Desktop for Mac 2.22 | 2.22.25.2 → < 2.25.21.78 | 2.25.21.78 |
| WhatsApp Business for iOS 2.22 | 2.22.25.2 → < 2.25.21.78 | 2.25.21.78 |
| WhatsApp for iOS 2.22 | 2.22.25.2 → < 2.25.21.73 | 2.25.21.73 |
Other CVEs of WhatsApp Desktop for Mac
The 4 CVEs of WhatsApp Desktop for Mac →
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
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
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