CVE-2025-41760

Pass filter with Empty Table

State: Published
Severity: 4.9 Medium
Published: Mar 9, 2026
Updated: Mar 9, 2026
Reserved: Apr 16, 2025

Description

An administrator may attempt to block all traffic by configuring a pass filter with an empty table. However, in UBR, an empty list does not enforce any restrictions and allows all network traffic to pass unfiltered.

Scores

CVSS	Score	Vector	Source
3.1	4.9 Medium	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N	CERTVDE

Weaknesses

CWE-636 Not Failing Securely ('Failing Open')

Affected Products

Product	Versions
UBR-01 Mk IIMBS	0.0.0 to before 6.0.1.0Affected
UBR-02MBS	0.0.0 to before 6.0.1.0Affected
UBR-LONMBS	0.0.0 to before 6.0.1.0Affected

References

https://www.mbs-solutions.de/mbs-2025-0001

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