KEV Entry

CVE-2025-55177

Known Exploited Vulnerability Entry External Catalog

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Entry Details
Confirmed Exploited

CVE-2025-55177

2026-06-01 10:39 UTC

Timestamps

2026-06-01

2026-06-01

Scope

KEVIntel entry: 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,... | Affected: Facebook / WhatsApp Desktop for Mac, WhatsApp Business for iOS, WhatsApp for iOS | CVSS: 5.4 (MEDIUM) | EPSS: 0.04116 | Used in malware: unknown | Not yet in CISA KEV: False

References
  • {'id': 'CVE-2025-55177', 'url': 'https://www.cve.org/CVERecord?id=CVE-2025-55177'}
  • {'id': 'kevintel', 'url': 'https://kevintel.com/vuln/CVE-2025-55177'}

a40f1858-7626-4c32-a928-7a383249e5d2

caeb2787-0d58-4236-9039-7c86c3e566f3

2026-06-19 12:42 UTC

2026-06-19 12:42 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
public_report kevintel successful_exploitation 0.70
View details 
{
  "added_date": "2026-06-01T10:39:48.575Z",
  "ahead_of_cisa_kev": {
    "count": 1,
    "unit": "day"
  },
  "cvss_score": 5.4,
  "cvss_severity": "MEDIUM",
  "epss_percentile": 0.89479,
  "epss_score": 0.04116,
  "feed": "KEVIntel (kevintel.com)",
  "not_yet_in_cisa_kev": false,
  "product": "WhatsApp Desktop for Mac, WhatsApp Business for iOS, WhatsApp for iOS",
  "title": "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,...",
  "used_in_malware": "unknown",
  "vendor": "Facebook"
}
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