CVE-2025-55182
CRITICAL CISA KEVCVSS v3
10
CRITICAL
EPSS Score
69.8%
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
Description
A pre-authentication remote code execution vulnerability exists in React Server Components versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. The vulnerable code unsafely deserializes payloads from HTTP requests to Server Function endpoints.
CISA Known Exploited Vulnerability
- Date Added
- 12/5/2025
- Patch Due Date
- 12/12/2025
- Ransomware Use
- Known
- 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.
Technical Details
- CVSS v3 Vector
- 3.1
- Published
- 12/3/2025
- Last Modified
- 12/10/2025
- CERT-FR Advisory
- CERTFR-2025-ALE-014
- CERT-FR Link
- CERTFR-2025-ALE-014
Frequently Asked Questions
What is CVE-2025-55182?
A pre-authentication remote code execution vulnerability exists in React Server Components versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. The vulnerable code unsafely deserializes payloads from HTTP requests to Server Function endpoints.
Is CVE-2025-55182 actively exploited?
Yes. CVE-2025-55182 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 12/12/2025.
What is the CVSS score for CVE-2025-55182?
CVE-2025-55182 has a CVSS v3 base score of 10 (CRITICAL severity), with vector string 3.1.
Is CVE-2025-55182 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.