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Case File

CVE-2025-9611

UNKNOWN · CVSS N/A EPSS 1.15% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-01-07 · Last synced 2026-08-04

CyberRota Analysis

This vulnerability has an unknown severity rating. It affects Microsoft. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗ github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2025-9611
Severity
UNKNOWN
CVSS
N/A
EPSS
1.15%
Microsoft

Original NVD Description

Microsoft Playwright MCP Server versions prior to 0.0.40 fails to validate the Origin header on incoming connections. This allows an attacker to perform a DNS rebinding attack via a victim’s web browser and send unauthorized requests to a locally running MCP server, resulting in unintended invocation of MCP tool endpoints.