What is the CVSS score of CVE-2026-2249?

CVE-2026-2249 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.3%.

How to fix or mitigate CVE-2026-2249?

Within 24 hours: Inventory all METIS DFS devices and identify those running oscore versions <= 2.1.234-r18; immediately restrict network access to the /console endpoint via firewall rules. Within 7 days: Implement WAF rules to block /console endpoint access and deploy network segmentation to isolate METIS DFS devices from untrusted networks; conduct forensic analysis for signs of unauthorized access. Within 30 days: Contact METIS vendor for patch timeline and emergency support; evaluate alternative DFS solutions; implement continuous monitoring for exploit attempts against /console endpoint.

CVE-2026-2249

CRITICAL

Improper Authentication (CWE-287)

2026-02-11 56a186b1-7f5e-4314-ba38-38d5499fccfd

Authentication Bypass Information Disclosure RCE

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:02 vuln.today

CVE Published

Feb 11, 2026 - 15:16 nvd

CRITICAL 9.8

DescriptionCVE.org

METIS DFS devices (versions <= oscore 2.1.234-r18) expose a web-based shell at the /console endpoint that does not require authentication. Accessing this endpoint allows a remote attacker to execute arbitrary operating system commands with 'daemon' privileges. This results in the compromise of the software, granting unauthorized access to modify configuration, read and alter sensitive data, or disrupt services.