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 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

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access

Authenticate to Tenda TX3 web interface

Exploit

Send crafted HTTP POST to /goform/SetIpMacBind

Execution

Overflow buffer in argument list parsing

Impact

Execute arbitrary code with device privileges

Access

Authenticate to Tenda TX3 web interface

Exploit

Send crafted HTTP POST to /goform/SetIpMacBind

Execution

Overflow buffer in argument list parsing

Impact

Execute arbitrary code with device privileges

Vulnerability AssessmentAI

Exploitation	Tenda TX3 router firmware version 16.03.13.11_multi or earlier with web management interface enabled. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	CVSS 8.8 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	A remote attacker could exploit this flaw, buffer overflow.
Remediation	Monitor vendor advisories for a patch. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

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. …

Threat intelligence, references, and detailed analysis are available after sign-in.

CVE-2026-2137 vulnerability details – vuln.today

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Tx3 Firmware CVE-2026-2137

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

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Attack ChainAIDerived

Vulnerability AssessmentAI

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External POC / Exploit Code