CVE-2025-41759 PUBLISHED

Use of wildcard (“*” or “all”) in Block list

Assigner: CERTVDE
Reserved: 16.04.2025 Published: 09.03.2026 Updated: 09.03.2026

An administrator may attempt to block all networks by specifying "*" or "all" as the network identifier. However, these values are not supported and do not trigger any validation error. Instead, they are silently interpreted as network 0 which results in no networks being blocked at all.

Metrics

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

Product Status

Vendor MBS
Product UBR-01 Mk II
Versions Default: unaffected
  • affected from 0.0.0 to 6.0.1.0 (excl.)
Vendor MBS
Product UBR-02
Versions Default: unaffected
  • affected from 0.0.0 to 6.0.1.0 (excl.)
Vendor MBS
Product UBR-LON
Versions Default: unaffected
  • affected from 0.0.0 to 6.0.1.0 (excl.)

Credits

  • Adrien Rey from Cyber Defense Campus Zurich finder
  • Daniel Hulliger from Armasuisse finder

References

Problem Types

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