How severe is CVE-2026-5685?

CVE-2026-5685 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-2026-5685 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-2026-5685?

CVE-2026-5685 affects Tenda Cx12l Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-5685?

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-2026-5685 have an EU (EUVD) identifier?

Yes. CVE-2026-5685 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19541.

When was CVE-2026-5685 published?

CVE-2026-5685 was published on 2026-04-06 and last updated on 2026-06-17.

CVE-2026-5685

CVE-2026-5685 is a high-severity vulnerability in Tenda Cx12l 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-2026-19541
Weakness: CWE-119
Affected product: Tenda Cx12l Firmware
Published: 2026-04-06
Last modified: 2026-06-17

Description

A vulnerability was identified in Tenda CX12L 16.03.53.12. This affects the function fromAddressNat of the file /goform/addressNat. The manipulation of the argument page leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit is publicly available and might be used.

Frequently asked questions

What is CVE-2026-5685?: A vulnerability was identified in Tenda CX12L 16.03.53.12. This affects the function fromAddressNat of the file /goform/addressNat. The manipulation of the argument page leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit is publicly available and might be used.
How severe is CVE-2026-5685?: CVE-2026-5685 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-2026-5685 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-2026-5685?: CVE-2026-5685 affects Tenda Cx12l Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-5685?: 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-2026-5685 have an EU (EUVD) identifier?: Yes. CVE-2026-5685 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19541.
When was CVE-2026-5685 published?: CVE-2026-5685 was published on 2026-04-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tenda:cx12l_firmware:16.03.53.12:*:*:*:*:*:*:*

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