CVE-2025-55177

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-55177
StatePUBLISHED
Assignerfacebook
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-08-29 16:15:36 UTC
Updated2026-10-08 10:35:40 UTC
DescriptionIncomplete 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.

Risk And Classification

Primary CVSS: v3.1 5.4 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

EPSS: 0.047340000 probability, percentile 0.918330000 (date 2026-10-24)

CISA KEV: Listed on 2025-09-02; due 2025-09-23; ransomware use Unknown

Problem Types: CWE-863 | Incorrect Authorization (CWE-863) | CWE-863 CWE-863 Incorrect Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
3.1CNACVSS5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:F/RL:O/RC:C

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

CISA Known Exploited Vulnerability

VendorMeta Platforms
ProductWhatsApp
NameMeta Platforms WhatsApp Incorrect Authorization Vulnerability
Required ActionApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Noteshttps://www.whatsapp.com/security/advisories/2025/ ; https://nvd.nist.gov/vuln/detail/CVE-2025-55177

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Whatsapp Whatsapp All All All All
Application Whatsapp Whatsapp All All All All
Application Whatsapp Whatsapp Business All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Facebook WhatsApp Desktop For Mac affected 2.22.25.2 2.25.21.78 semver Not specified
CNA Facebook WhatsApp Business For IOS affected 2.22.25.2 2.25.21.78 semver Not specified
CNA Facebook WhatsApp For IOS affected 2.22.25.2 2.25.21.73 semver Not specified

References

ReferenceSourceLinkTags
www.facebook.com/security/advisories/cve-2025-55177 [email protected] www.facebook.com Vendor Advisory
www.cisa.gov/known-exploited-vulnerabilities-catalog 134c704f-9b21-4f2e-91b3-4a467353bcc0 www.cisa.gov US Government Resource
www.whatsapp.com/security/advisories/2025 [email protected] www.whatsapp.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
CISA Known Exploited Vulnerabilities catalog CISA www.cisa.gov kev

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