CVE-2025-67779

HIGH EPSS 96.9%
Published Dec 12, 20256mo ago · Modified Jun 17, 20261w ago
7.5 CVSS 3.1
High
Find Similar
Published Dec 12, 2025 6mo ago
Last Modified Jun 17, 2026 1w ago

Description

It was found that the fix addressing CVE-2025-55184 in React Server Components was incomplete and does not prevent a denial of service attack in a specific case. React Server Components versions 19.0.2, 19.1.3 and 19.2.2 are affected, allowing unsafe deserialization of payloads from HTTP requests to Server Function endpoints. This can cause an infinite loop that hangs the server process and may prevent future HTTP requests from being served.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
96.9% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 2

CWE-400 Uncontrolled Resource Consumption Resource Mgmt
CWE-502 Deserialization of Untrusted Data Validation

Affected Products 92

VendorProductVersionRange
facebookreact19.0.2any
facebookreact19.1.3any
facebookreact19.2.2any
vercelnext.js*≥13.3.0  –  <14.2.35
vercelnext.js*≥15.0.0  –  <15.0.7
vercelnext.js*≥15.1.0  –  <15.1.11
vercelnext.js*≥15.2.0  –  <15.2.8
vercelnext.js*≥15.3.0  –  <15.3.8
vercelnext.js*≥15.4.0  –  <15.4.10
vercelnext.js*≥15.5.0  –  <15.5.9
vercelnext.js*≥16.0.0  –  <16.0.10
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js15.6.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any
vercelnext.js16.1.0any

References 2

  • react.dev https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components
    Vendor Advisory
  • facebook.com https://www.facebook.com/security/advisories/cve-2025-67779
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.