{"cve":"CVE-2025-55177","nvd":{"published":"2025-08-29T16:15:36.723","modified":"2026-10-18T21:10:00.120","status":"Analyzed","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","score":5.4},"cwes":["CWE-863"],"references":["https://www.facebook.com/security/advisories/cve-2025-55177","https://www.whatsapp.com/security/advisories/2025/","https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-55177"],"products":["whatsapp:whatsapp","whatsapp:whatsapp_business"],"source":"nvd","synced_at":"2026-10-19T22:07:46.309729541+00:00"},"epss":{"cve":"CVE-2025-55177","score":0.13084,"percentile":0.96322,"date":"2026-10-25"},"kev":{"cve":"CVE-2025-55177","date_added":"2025-09-02","due_date":"2025-09-23","vendor":"Meta Platforms","product":"WhatsApp","known_ransomware":false},"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}