What is the CVSS score of CVE-2026-2137?

CVE-2026-2137 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of Tx3 Firmware are affected by CVE-2026-2137?

A high-severity vulnerability (CVSS 8.8) affects Tenda TX3 routers up to version 16.03.13.11_multi with no available patch, creating immediate risk for organizations relying on these devices for…

Is there a public PoC exploit available for CVE-2026-2137?

Yes, a public proof-of-concept exploit is available for CVE-2026-2137. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2026-2137?

Within 24 hours: Inventory all Tenda TX3 devices in production and assess deployment scope; isolate affected devices from untrusted networks where possible; enable logging on affected devices. Within 7 days: Implement network segmentation to restrict access to the vulnerable /goform/SetIpMacBind endpoint; deploy WAF rules blocking suspicious requests to this function; consider disabling IP-MAC binding feature if operationally feasible. Within 30 days: Develop transition plan to replace Tenda TX3 with patched/alternative vendor solutions; establish vendor communication channel for patch availability; conduct security assessment of any systems that may have been compromised.

Tx3 Firmware CVE-2026-2137

HIGH

Buffer Overflow (CWE-119)

2026-02-08 cna@vuldb.com

Buffer Overflow Tenda Tx3 Firmware

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

PoC Detected

Feb 11, 2026 - 18:46 vuln.today

Public exploit code

CVE Published

Feb 08, 2026 - 06:16 nvd

HIGH 8.8

DescriptionCVE.org

A vulnerability has been found in Tenda TX3 up to 16.03.13.11_multi. This impacts an unknown function of the file /goform/SetIpMacBind. The manipulation of the argument list leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

AnalysisAI

Remote code execution in Tenda TX3 firmware through version 16.03.13.11_multi allows authenticated attackers to execute arbitrary code via buffer overflow in the /goform/SetIpMacBind endpoint. Public exploit code exists for this vulnerability and no patch is currently available. This high-severity flaw requires valid credentials but can be exploited over the network without user interaction.

Technical ContextAI

Classified as CWE-119 (Buffer Overflow). Affects Tx3 Firmware. A vulnerability has been found in Tenda TX3 up to 16.03.13.11_multi. This impacts an unknown function of the file /goform/SetIpMacBind. The manipulation of the argument list leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

RemediationAI

Monitor vendor advisories for a patch. Enable ASLR, DEP/NX, and stack canaries where possible. Restrict network access to the affected service where possible.