Vendor
Meta: actively exploited vulnerabilities
4 vulnerabilities in Meta products are listed in CISA’s catalog of actively exploited vulnerabilities, 1 of them used by ransomware. Latest addition on December 5, 2025: CVE-2025-55182 (React Server Components).
- 4 exploited vulnerabilities in the catalog
- 1 added in the last 12 months
- 1 used by ransomware
- 2 products affected
Affected products
- WhatsApp3
- React Server Components1
All exploited vulnerabilities
CISA KEV catalog, newest first: each entry corresponds to observed exploitation.
2025 2 vulnerabilities
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CVE-2025-55182Used by ransomwareMeta React Server Components Remote Code Execution Vulnerability
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CVE-2025-55177Meta Platforms WhatsApp Incorrect Authorization Vulnerability
2022 2 vulnerabilities
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CVE-2019-18426WhatsApp Cross-Site Scripting Vulnerability
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CVE-2019-3568WhatsApp VOIP Stack Buffer Overflow Vulnerability
What to do
If your estate includes any of these products, make sure the vendor’s patches are applied, starting with the most recent vulnerabilities and those used by ransomware, then look for signs of compromise: an exploited vulnerability has often been used before it was fixed.
Additions from all vendors are tracked on the Actively exploited vulnerabilities page, updated several times a day. Sources: CISA KEV catalog (US public domain) and CERT-FR.