What is the CVSS score of CVE-2025-56499?

CVE-2025-56499 has a CVSS 3.1 base score of 6.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 0.1%.

Which versions of Mihomo are affected by CVE-2025-56499?

Organizations using mihomo should be aware of notable risk from CVE-2025-56499, a improper access control vulnerability rated CVSS 6.5.

Is there a public PoC exploit available for CVE-2025-56499?

Yes, a public proof-of-concept exploit is available for CVE-2025-56499. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2025-56499?

Within 7 days: Identify affected systems running mihomo and apply vendor patches promptly. Monitor vendor channels for patch availability.

Mihomo CVE-2025-56499

MEDIUM

Improper Access Control (CWE-284)

2025-11-18 cve@mitre.org

Authentication Bypass Mihomo

6.5

CVSS 3.1 · Vendor: mitre

Severity by source

Vendor (mitre) PRIMARY

6.5 MEDIUM

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Primary rating from Vendor (mitre) · only source for this CVE.

CVSS VectorVendor: mitre

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:22 vuln.today

PoC Detected

Dec 31, 2025 - 14:01 vuln.today

Public exploit code

CVE Published

Nov 18, 2025 - 19:15 nvd

MEDIUM 6.5

DescriptionCVE.org

AnalysisAI

Incorrect access control in mihomo v1.19.11 allows authenticated attackers with low-level privileges to read arbitrary files with elevated privileges via obtaining the external control key from the. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-284. Incorrect access control in mihomo v1.19.11 allows authenticated attackers with low-level privileges to read arbitrary files with elevated privileges via obtaining the external control key from the config file. Affected products include: Metacubex Mihomo.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.