CVE-2025-41761 Privilege escalation possible
A local attacker with access to the UBR service account can escalate privileges to full system access by exploiting sudo permissions on specific binaries.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-41761?
CVE-2025-41761 is a high-severity vulnerability in MBS UBR-01 Mk II, published on 9 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A low‑privileged local attacker who gains access to the UBR service account (e.g., via SSH) can escalate privileges to obtain full system access. This is due to the service account being permitted to execute certain binaries (e.g., tcpdump and ip) with sudo.
Weakness: CWE-88
Which versions are affected by CVE-2025-41761?
It affects 1 product.
Products include Mbs-Solutions Universal Bacnet Router Firmware.
How do I fix CVE-2025-41761?
No fix has been published for CVE-2025-41761 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-41761 being exploited?
There is no known exploitation of CVE-2025-41761 in the wild and no public exploit code.
Other vulnerabilities in MBS UBR-01 Mk II
Sources
Also known as GHSA-7f72-6wg4-prpr.