How severe is CVE-2026-7470?

CVE-2026-7470 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-2026-7470 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-7470?

CVE-2026-7470 affects Tenda 4g300 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-7470?

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-2026-7470 have an EU (EUVD) identifier?

Yes. CVE-2026-7470 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26307.

When was CVE-2026-7470 published?

CVE-2026-7470 was published on 2026-04-30 and last updated on 2026-06-17.

CVE-2026-7470

CVE-2026-7470 is a high-severity vulnerability in Tenda 4g300 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% (40th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-26307
Weakness: CWE-119
Affected product: Tenda 4g300 Firmware
Published: 2026-04-30
Last modified: 2026-06-17

Description

A flaw has been found in Tenda 4G300 US_4G300V1.0Mt_V1.01.42_CN_TDC01. Affected is the function sub_427C3C of the file /goform/SafeMacFilter. This manipulation of the argument page causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been published and may be used.

Frequently asked questions

What is CVE-2026-7470?: A flaw has been found in Tenda 4G300 US_4G300V1.0Mt_V1.01.42_CN_TDC01. Affected is the function sub_427C3C of the file /goform/SafeMacFilter. This manipulation of the argument page causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been published and may be used.
How severe is CVE-2026-7470?: CVE-2026-7470 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-2026-7470 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-7470?: CVE-2026-7470 affects Tenda 4g300 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-7470?: 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-2026-7470 have an EU (EUVD) identifier?: Yes. CVE-2026-7470 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26307.
When was CVE-2026-7470 published?: CVE-2026-7470 was published on 2026-04-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tenda:4g300_firmware:1.01.42_cn_tdc01:*:*:*:*:*:*:*

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CVE-2023-38929 — Critical (CVSS 9.8): Tenda 4G300 v1.01.42 was discovered to contain a stack overflow via the page parameter at /VirtualSer.
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