How severe is CVE-2026-2186?

CVE-2026-2186 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-2026-2186 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-2186?

CVE-2026-2186 affects Tenda Rx3 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-2186?

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-2026-2186 have an EU (EUVD) identifier?

Yes. CVE-2026-2186 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5764.

When was CVE-2026-2186 published?

CVE-2026-2186 was published on 2026-02-08 and last updated on 2026-06-17.

CVE-2026-2186

CVE-2026-2186 is a high-severity vulnerability in Tenda Rx3 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% (53rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-5764
Weakness: CWE-119
Affected product: Tenda Rx3 Firmware
Published: 2026-02-08
Last modified: 2026-06-17

Description

A vulnerability has been found in Tenda RX3 16.03.13.11. Impacted is the function fromSetIpMacBind of the file /goform/SetIpMacBind. Such manipulation of the argument list leads to stack-based buffer overflow. The attack may be performed from remote. The exploit has been disclosed to the public and may be used.

Frequently asked questions

What is CVE-2026-2186?: A vulnerability has been found in Tenda RX3 16.03.13.11. Impacted is the function fromSetIpMacBind of the file /goform/SetIpMacBind. Such manipulation of the argument list leads to stack-based buffer overflow. The attack may be performed from remote. The exploit has been disclosed to the public and may be used.
How severe is CVE-2026-2186?: CVE-2026-2186 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-2026-2186 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-2186?: CVE-2026-2186 affects Tenda Rx3 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-2186?: 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-2026-2186 have an EU (EUVD) identifier?: Yes. CVE-2026-2186 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5764.
When was CVE-2026-2186 published?: CVE-2026-2186 was published on 2026-02-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tenda:rx3_firmware:16.03.13.11:*:*:*:*:*:*:*

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