ACTIVELY EXPLOITED
CVE-2025-55182: Meta React Server Components Remote Code Execution Vulnerability
| Vendor | Meta |
|---|---|
| Product | React Server Components |
| Actively exploited | Yes |
| Added to CISA KEV | 5 Dec 2025 |
| CISA federal deadline | 12 Dec 2025 |
| Ransomware use | Known |
Required action (CISA's text)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Description (NVD)
Meta React Server Components contains a remote code execution vulnerability that could allow unauthenticated remote code execution by exploiting a flaw in how React decodes payloads sent to React Server Function endpoints. Please note CVE-2025-66478 has been rejected, but it is associated with CVE-2025- 55182.
SOURCES
Other Meta flaws
- CVE-2025-55177: Meta Platforms WhatsApp Incorrect Authorization Vulnerability
- CVE-2019-18426: WhatsApp Cross-Site Scripting Vulnerability
- CVE-2019-3568: WhatsApp VOIP Stack Buffer Overflow Vulnerability
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.