How severe is CVE-2026-35083?

CVE-2026-35083 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-35083 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-35083?

CVE-2026-35083 affects Mbs-solutions Universal Gateway Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-35083?

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-2026-35083 have an EU (EUVD) identifier?

Yes. CVE-2026-35083 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-34079.

When was CVE-2026-35083 published?

CVE-2026-35083 was published on 2026-06-03 and last updated on 2026-07-03.

CVE-2026-35083

CVE-2026-35083 is a high-severity vulnerability in Mbs-solutions Universal Gateway Firmware with a CVSS 3.x base score of 8.8. 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-121.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 8.7
EPSS exploit prediction: 0% (36th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-34079
Weakness: CWE-121
Affected product: Mbs-solutions Universal Gateway Firmware
Published: 2026-06-03
Last modified: 2026-07-03

Description

A remote attacker with user privileges can exploit a stack buffer overflow to gain full system access as root.

Frequently asked questions

What is CVE-2026-35083?: A remote attacker with user privileges can exploit a stack buffer overflow to gain full system access as root.
How severe is CVE-2026-35083?: CVE-2026-35083 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-35083 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-35083?: CVE-2026-35083 affects Mbs-solutions Universal Gateway Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-35083?: 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-2026-35083 have an EU (EUVD) identifier?: Yes. CVE-2026-35083 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-34079.
When was CVE-2026-35083 published?: CVE-2026-35083 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:*:*:*:*:*:*:*:*

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