Vulnerability in Facebook Whatsapp Business For Ios
CVE-2025-55177
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…
EPSS: 0.008 (73.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:F/RL:O/RC:C.
Affected products
- Facebook Whatsapp Business For Ios — versions 2.22.25.2
- Facebook Whatsapp Desktop For Mac — versions 2.22.25.2
- Facebook Whatsapp For Ios — versions 2.22.25.2
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
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.
Public proof-of-concept exploits
References
- www.facebook.com/security/advisories/cve-2025-55177 (x_refsource_CONFIRM)
- www.whatsapp.com/security/advisories/2025/ (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2025-55177?
- CVE-2025-55177 is a medium-severity vulnerability in Facebook Whatsapp Business For Ios. CVSS score: 5.4/10. Published 2025-08-29.
- How severe is CVE-2025-55177?
- Medium severity. CVSS v3 base score is 5.4 out of 10.
- Is CVE-2025-55177 known to be exploited?
- Yes. CVE-2025-55177 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-09-02), indicating it is being actively exploited. 5 public proof-of-concept repositories are indexed.