What is CVE-2025-56405?

CVE-2025-56405 is a high-severity vulnerability in Litmus Mcp_server, classified under Improper Access Control. CVSS score: 7.5/10. Published 2025-09-10.

How severe is CVE-2025-56405?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2025-56405 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Litmus Mcp_server

CVE-2025-56405

An issue was discovered in litmusautomation litmus-mcp-server thru 0.0.1 allowing unauthorized attackers to control the target's MCP service through the SSE protocol.

EPSS: 0.003 (21.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Litmus Mcp_server — versions 0.0.1
N/a — versions n/a

Weakness classification (CWE)

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

cve@mitre.org (Exploit)
cve@mitre.org (Issue Tracking)

Frequently asked questions

What is CVE-2025-56405?: CVE-2025-56405 is a high-severity vulnerability in Litmus Mcp_server, classified under Improper Access Control. CVSS score: 7.5/10. Published 2025-09-10.
How severe is CVE-2025-56405?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2025-56405 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.