How severe is CVE-2026-3700?

CVE-2026-3700 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-2026-3700 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-3700?

CVE-2026-3700 affects Utt 810g Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-3700?

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-2026-3700 have an EU (EUVD) identifier?

Yes. CVE-2026-3700 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10207.

When was CVE-2026-3700 published?

CVE-2026-3700 was published on 2026-03-08 and last updated on 2026-06-17.

CVE-2026-3700

CVE-2026-3700 is a high-severity vulnerability in Utt 810g 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-119.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
CVSS v4: 7.4
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-10207
Weakness: CWE-119
Affected product: Utt 810g Firmware
Published: 2026-03-08
Last modified: 2026-06-17

Description

A weakness has been identified in UTT HiPER 810G up to 1.7.7-171114. Affected is the function strcpy of the file /goform/formConfigDnsFilterGlobal. This manipulation causes buffer overflow. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks.

Frequently asked questions

What is CVE-2026-3700?: A weakness has been identified in UTT HiPER 810G up to 1.7.7-171114. Affected is the function strcpy of the file /goform/formConfigDnsFilterGlobal. This manipulation causes buffer overflow. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks.
How severe is CVE-2026-3700?: CVE-2026-3700 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-2026-3700 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-3700?: CVE-2026-3700 affects Utt 810g Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-3700?: 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-2026-3700 have an EU (EUVD) identifier?: Yes. CVE-2026-3700 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10207.
When was CVE-2026-3700 published?: CVE-2026-3700 was published on 2026-03-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:utt:810g_firmware:*:*:*:*:*:*:*:*

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