Which versions of Tenda are affected by CVE-2026-4253?

Organizations using A security flaw should be aware of moderate risk from CVE-2026-4253, a command injection vulnerability rated CVSS 4.7.

Is there a public PoC exploit available for CVE-2026-4253?

Yes, a public proof-of-concept exploit is available for CVE-2026-4253. Prioritise patching immediately. EPSS: 0.6%.

How to fix or mitigate CVE-2026-4253?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Validate input sanitization for user-controlled parameters.

Tenda CVE-2026-4253

Q: What is the CVSS score of CVE-2026-4253?

CVE-2026-4253 has a CVSS 4.0 base score of 2.0 (Low). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.6%.

EUVD-2026-12472 LOW

Command Injection (CWE-77)

2026-03-16 cna@vuldb.com

Tenda Command Injection

2.0

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

2.0 LOW

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

MEDIUM LOW

CVSS changed

Apr 29, 2026 - 01:11 NVD

4.7 (MEDIUM) 2.0 (LOW)

PoC Detected

Mar 20, 2026 - 12:55 vuln.today

Public exploit code

EUVD ID Assigned

Mar 16, 2026 - 18:30 euvd

EUVD-2026-12472

Analysis Generated

Mar 16, 2026 - 18:30 vuln.today

CVE Published

Mar 16, 2026 - 18:16 nvd

MEDIUM 4.7

DescriptionCVE.org

A security flaw has been discovered in Tenda AC8 16.03.50.11. This affects the function route_set_user_policy_rule of the file /cgi-bin/UploadCfg of the component Web Interface. The manipulation of the argument wans.policy.list1 results in os command injection. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.

AnalysisAI

OS command injection in Tenda AC8 16.03.50.11 web interface allows authenticated remote attackers to execute arbitrary commands through the wans.policy.list1 parameter in the /cgi-bin/UploadCfg endpoint. Public exploit code exists for this vulnerability and no patch is currently available.

Technical ContextAI

Command injection allows an attacker to execute arbitrary OS commands on the host system through a vulnerable application that passes user input to system shells.

RemediationAI

Avoid passing user input to system commands. Use language-specific APIs instead of shell commands. If unavoidable, use strict input validation and escaping.