CVE-2025-41766

Stack buffer overflow on parsing web request

State: Published
Severity: 8.8 High
Published: Mar 9, 2026
Updated: Mar 9, 2026
Reserved: Apr 16, 2025

Description

A low-privileged remote attacker can trigger a stack-based buffer overflow via a crafted HTTP POST request using the ubr-network method resulting in full device compromise.

Scores

CVSS	Score	Vector	Source
3.1	8.8 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	CERTVDE

Weaknesses

CWE-787 Out-of-bounds Write

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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