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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.

PUBLISHED Reserved 2025-04-16 | Published 2026-03-09 | Updated 2026-03-09 | Assigner CERTVDE




MEDIUM: 4.9CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Problem types

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

Product status

Default status
unaffected

0.0.0 (semver) before 6.0.1.0
affected

Default status
unaffected

0.0.0 (semver) before 6.0.1.0
affected

Default status
unaffected

0.0.0 (semver) before 6.0.1.0
affected

Credits

Adrien Rey from Cyber Defense Campus Zurich finder

Daniel Hulliger from Armasuisse finder

References

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

cve.org (CVE-2025-41760)

nvd.nist.gov (CVE-2025-41760)

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