How severe is CVE-2026-35078?

CVE-2026-35078 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2026-35078 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-35078?

CVE-2026-35078 affects Mbs-solutions Universal Gateway Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-35078?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-35078 have an EU (EUVD) identifier?

Yes. CVE-2026-35078 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-34074.

When was CVE-2026-35078 published?

CVE-2026-35078 was published on 2026-06-03 and last updated on 2026-07-03.

CVE-2026-35078

CVE-2026-35078 is a high-severity vulnerability in Mbs-solutions Universal Gateway Firmware with a CVSS 3.x base score of 8.1. 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-73.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v4: 7.2
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-34074
Weakness: CWE-73
Affected product: Mbs-solutions Universal Gateway Firmware
Published: 2026-06-03
Last modified: 2026-07-03

Description

The ugw-logstop method allows a remote attacker with user privileges to delete arbitrary local files due to insufficient validation of user-controlled input.

Frequently asked questions

What is CVE-2026-35078?: The ugw-logstop method allows a remote attacker with user privileges to delete arbitrary local files due to insufficient validation of user-controlled input.
How severe is CVE-2026-35078?: CVE-2026-35078 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2026-35078 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-35078?: CVE-2026-35078 affects Mbs-solutions Universal Gateway Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-35078?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-35078 have an EU (EUVD) identifier?: Yes. CVE-2026-35078 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-34074.
When was CVE-2026-35078 published?: CVE-2026-35078 was published on 2026-06-03 and last updated on 2026-07-03.

References

https://www.certvde.com/en/advisories/VDE-2026-039/

Affected products (1)

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

More vulnerabilities in Mbs-solutions Universal Gateway Firmware

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CVE-2026-35081 — High (CVSS 8.1): The ugw-logstop method allows a remote attacker with user privileges to terminate arbitrary processes due to…

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