What is the CVSS score of CVE-2026-2180?

CVE-2026-2180 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%.

Is there a public PoC exploit available for CVE-2026-2180?

Yes, a public proof-of-concept exploit is available for CVE-2026-2180. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2026-2180?

Within 24 hours: Inventory all Tenda RX3 16.03.13.11 devices in production and isolate or disable affected units if operationally feasible. Within 7 days: Implement network segmentation to restrict administrative access to affected routers and monitor for suspicious activity on vulnerable devices. Within 30 days: Plan migration to alternative router hardware from vendors with active security patching; escalate vendor contact for patch timeline or evaluate managed security appliance replacement.

Rx3 Firmware CVE-2026-2180

HIGH

Buffer Overflow (CWE-119)

2026-02-08 cna@vuldb.com

Buffer Overflow Stack Overflow Tenda Rx3 Firmware

8.8

CVSS 3.1 · NVD

View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

Access

Authenticate to Tenda RX3 web interface
Delivery

Send crafted POST request to /goform/fast_setting_wifi_set
Exploit

Inject oversized ssid_5g parameter
Execution

Overflow stack buffer
Impact

Execute arbitrary code as root

Vulnerability Assessment

Weakness	CWE CWE-119 OWASP Top 10:2025 A06:2021 - Vulnerable and Outdated Components ASVS 5.0 V15 - Secure Coding and Architecture Bounds checking, buffer size validation MITRE ATT&CK 2 techniques across 2 tactics: Execution, Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Exploitation Conditions	Tenda RX3 firmware version 16.03.13.11 with /goform/fast_setting_wifi_set endpoint accessible. Attacker must possess valid authentication credentials for the device's web management interface.
Impact	CVSS 8.8 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: Low. User interaction: None. Exploitable via remote/network. Public exploit/POC available.
Exploit ScenarioDerived	A remote attacker could exploit this flaw, stack-based buffer overflow.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

Stack-based buffer overflow in Tenda RX3 firmware 16.03.13.11 allows unauthenticated remote attackers to achieve code execution by sending a malicious SSID value to the /goform/fast_setting_wifi_set endpoint. Public exploit code exists for this vulnerability and no patch is currently available. An attacker can exploit this to gain complete system compromise with high integrity and availability impact.

Earlier versions of this analysis (1)

v1 Mar 12, 2026 - 21:55 CVSS 8.8

A vulnerability was identified in Tenda RX3 16.03.13.11. Affected is an unknown function of the file /goform/fast_setting_wifi_set. [CVSS 8.8 HIGH]

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.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Classified as CWE-119 (Buffer Overflow). Affects Rx3 Firmware. A vulnerability was identified in Tenda RX3 16.03.13.11. Affected is an unknown function of the file /goform/fast_setting_wifi_set. Such manipulation of the argument ssid_5g leads to stack-based buffer overflow. The attack can be launched remotely. The exploit is publicly available and might be used.

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Exploit and PoC references, threat intelligence from 22 sources

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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

PoC Detected

Feb 10, 2026 - 14:43 vuln.today

Public exploit code

CVE Published

Feb 08, 2026 - 20:15 nvd

HIGH 8.8

DescriptionCVE.org

A vulnerability was identified in Tenda RX3 16.03.13.11. Affected is an unknown function of the file /goform/fast_setting_wifi_set. Such manipulation of the argument ssid_5g leads to stack-based buffer overflow. The attack can be launched remotely. The exploit is publicly available and might be used.

Executive ViewAI

Why It Matters

A high-severity vulnerability (CVSS 8.8) affects Tenda RX3 wireless routers with no available patch and active public exploits in circulation. Organizations using this device model face immediate risk of unauthorized access and network compromise, potentially exposing all connected systems and data.

Business Impact: High

Compensating Controls

Network segmentation (isolate router management interfaces from general network); restrict WAN access to /goform/fast_setting_wifi_set endpoint via firewall rules; disable remote management/UPnP if not required; implement continuous monitoring for exploitation attempts; consider deploying a WAF or reverse proxy in front of the device if feasible; maintain backups to enable rapid recovery; evaluate replacement with patched hardware as priority.

Threat Intelligence Overview

EPSS Score

0.1%

Top 75% exploitable

Exploit

POC

Public exploit code exists

Data Quality

5 sources

Confidence: Medium

NVD

CVE.org

EPSS

GitHub

VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC Yes

EPSS 0.1%

Patch available No

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

Poc

System Exposure· derived

Open

Automatable· derived

Human Impact

High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +44

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Buffer Overflow HIGH

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Stack-based Buffer Overflow HIGH

A stack-based buffer overflow occurs when a program writes more data to a buffer located on the stack than it was allocated to hold.