How severe is CVE-2026-6120?

CVE-2026-6120 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-2026-6120 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-6120?

CVE-2026-6120 affects Tenda F451 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-6120?

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-2026-6120 have an EU (EUVD) identifier?

Yes. CVE-2026-6120 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21718.

When was CVE-2026-6120 published?

CVE-2026-6120 was published on 2026-04-12 and last updated on 2026-06-17.

CVE-2026-6120

CVE-2026-6120 is a high-severity vulnerability in Tenda F451 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% (48th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-21718
Weakness: CWE-119
Affected product: Tenda F451 Firmware
Published: 2026-04-12
Last modified: 2026-06-17

Description

A vulnerability was detected in Tenda F451 1.0.0.7. Affected is the function fromDhcpListClient of the file /goform/DhcpListClient of the component httpd. The manipulation of the argument page results in stack-based buffer overflow. The attack can be launched remotely. The exploit is now public and may be used.

Frequently asked questions

What is CVE-2026-6120?: A vulnerability was detected in Tenda F451 1.0.0.7. Affected is the function fromDhcpListClient of the file /goform/DhcpListClient of the component httpd. The manipulation of the argument page results in stack-based buffer overflow. The attack can be launched remotely. The exploit is now public and may be used.
How severe is CVE-2026-6120?: CVE-2026-6120 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-2026-6120 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-6120?: CVE-2026-6120 affects Tenda F451 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-6120?: 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-2026-6120 have an EU (EUVD) identifier?: Yes. CVE-2026-6120 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21718.
When was CVE-2026-6120 published?: CVE-2026-6120 was published on 2026-04-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tenda:f451_firmware:1.0.0.7:*:*:*:*:*:*:*

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