How we count
Every figure on this page is a direct count of entries in CISA’s Known Exploited Vulnerabilities catalog attributed by CISA to Meta (KEV field vendorProject), refreshed daily. “Ransomware-linked” counts entries CISA marks as known to be used in ransomware campaigns; the remainder are “unknown” to CISA, not confirmed ransomware-free. A KEV listing means the vulnerability has been observed exploited in the wild. Snapshot as of 2026-09-02.
Exploited Meta vulnerabilities (CISA KEV)
| CVE | Product | Vulnerability | Added | |
|---|---|---|---|---|
| CVE-2025-55182 | React Server Components | Meta React Server Components Remote Code Execution Vulnerability | 2025-12-05 | ransomware |
| CVE-2025-55177 | Meta Platforms WhatsApp Incorrect Authorization Vulnerability | 2025-09-02 | ||
| CVE-2019-18426 | WhatsApp Cross-Site Scripting Vulnerability | 2022-05-23 | ||
| CVE-2019-3568 | WhatsApp VOIP Stack Buffer Overflow Vulnerability | 2022-04-19 |
← All vendors by exploited-vulnerability count
🤖 Generated by defend.network from the CISA KEV catalog. Counts are deterministic aggregates of official CISA data; verify individual advisories at the linked sources.