How severe is CVE-2025-41755?

CVE-2025-41755 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-41755 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-41755?

CVE-2025-41755 affects Mbs-solutions Universal Bacnet Router Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-41755?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-41755 have an EU (EUVD) identifier?

Yes. CVE-2025-41755 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-208356.

When was CVE-2025-41755 published?

CVE-2025-41755 was published on 2026-03-09 and last updated on 2026-06-17.

CVE-2025-41755

CVE-2025-41755 is a medium-severity vulnerability in Mbs-solutions Universal Bacnet Router Firmware with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-208356
Weakness: CWE-22
Affected product: Mbs-solutions Universal Bacnet Router Firmware
Published: 2026-03-09
Last modified: 2026-06-17

Description

A low-privileged remote attacker can exploit the ubr-logread method in wwwubr.cgi to read arbitrary files on the system. The endpoint accepts a parameter specifying the log file to open (e.g., /tmp/weblog{some_number}), but this parameter is not properly validated, allowing an attacker to modify it to reference any file and retrieve its contents.

Frequently asked questions

What is CVE-2025-41755?: A low-privileged remote attacker can exploit the ubr-logread method in wwwubr.cgi to read arbitrary files on the system. The endpoint accepts a parameter specifying the log file to open (e.g., /tmp/weblog{some_number}), but this parameter is not properly validated, allowing an attacker to modify it to reference any file and retrieve its contents.
How severe is CVE-2025-41755?: CVE-2025-41755 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-41755 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-41755?: CVE-2025-41755 affects Mbs-solutions Universal Bacnet Router Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-41755?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-41755 have an EU (EUVD) identifier?: Yes. CVE-2025-41755 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-208356.
When was CVE-2025-41755 published?: CVE-2025-41755 was published on 2026-03-09 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:o:mbs-solutions:universal_bacnet_router_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Mbs-solutions Universal Bacnet Router Firmware

CVE-2025-41765 — Critical (CVSS 9.1): Due to insufficient authorization enforcement, an unauthorized remote attacker can exploit the wwwupload.cgi endpoint…
CVE-2025-41764 — Critical (CVSS 9.1): Due to insufficient authorization enforcement, an unauthorized remote attacker can exploit the wwwupdate.cgi endpoint…
CVE-2025-41766 — High (CVSS 8.8): A low-privileged remote attacker can trigger a stack-based buffer overflow via a crafted HTTP POST request using the…
CVE-2025-41758 — High (CVSS 8.8): A low-privileged remote attacker can exploit an arbitrary file write vulnerability in the wwupload.cgi endpoint. Due to…
CVE-2025-41757 — High (CVSS 8.8): A low-privileged remote attacker can abuse the backup restore functionality of UBR (ubr-restore) which runs with…
CVE-2025-41756 — High (CVSS 8.1): A low-privileged remote attacker can exploit the ubr-editfile method in wwwubr.cgi, an undocumented and unused API…

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