{"schema":"threatline.record/2","record":{"id":"CVE-2025-55177","aliases":[],"summary":"Meta Platforms WhatsApp Incorrect Authorization Vulnerability","details":"Meta Platforms WhatsApp contains an incorrect authorization vulnerability due to an incomplete authorization of linked device synchronization messages. This vulnerability could allow an unrelated user to trigger processing of content from an arbitrary URL on a target’s device.","categories":["Applications & CMS"],"product":"WhatsApp","vendor":"Meta Platforms","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2025-55177","source_modified_at":"2026-10-07T17:57:35.015Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"WhatsApp Desktop for Mac","vendor":"Facebook","versions":[{"lessThan":"2.25.21.78","status":"affected","version":"2.22.25.2","versionType":"semver"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2025-55177","source_modified_at":"2026-10-07T17:57:35.015Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"WhatsApp Business for iOS","vendor":"Facebook","versions":[{"lessThan":"2.25.21.78","status":"affected","version":"2.22.25.2","versionType":"semver"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2025-55177","source_modified_at":"2026-10-07T17:57:35.015Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"WhatsApp for iOS","vendor":"Facebook","versions":[{"lessThan":"2.25.21.73","status":"affected","version":"2.22.25.2","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2025-55177","source_modified_at":"2026-10-07T17:57:35.015Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"WhatsApp Desktop for Mac","ecosystem":null},"version":"2.25.21.78","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2025-55177","source_modified_at":"2026-10-07T17:57:35.015Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"WhatsApp Business for iOS","ecosystem":null},"version":"2.25.21.78","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2025-55177","source_modified_at":"2026-10-07T17:57:35.015Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"WhatsApp for iOS","ecosystem":null},"version":"2.25.21.73","basis":"first unaffected version stated in the CVE record"}],"cvss":5.4,"severity":"Medium","kev":{"listed":true,"date_added":"2025-09-02","due_date":"2025-09-23","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_campaign_use":"Unknown"},"epss":{"probability":0.04734,"percentile":0.91824,"score_date":"2026-10-23"},"published_at":"2025-08-29T15:50:28.578Z","modified_at":"2026-10-07T17:57:35.015Z","provenance":[{"source":"CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T17:00:09.9001Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2025-55177","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-07T17:57:35.015Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2025-55177","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://www.whatsapp.com/security/advisories/2025/","tags":["x_refsource_CONFIRM"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-55177","source":"CISA KEV"},{"source":"CVE List","url":"https://www.facebook.com/security/advisories/cve-2025-55177","tags":["x_refsource_CONFIRM"]},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-55177","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"active","automatable":"no","technical_impact":"total","assessed_at":"2025-08-30T03:55:35.684164Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-07T17:57:35.015Z","content_hash":"4176edb42333055a03db78961fb14d9fccaf2a25565fc4ac7714d761a78b1937"}}