W18E Firmware
CVE-2025-3203
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
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A06:2021 - Vulnerable and Outdated Components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. |
| Impact | CVSS score of 5.3 (MEDIUM). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required. EPSS exploitation probability: 0.32%. |
| Exploit ScenarioDerived | A remote attacker could corrupt memory to execute arbitrary code or crash the application by sending crafted requests to the affected application. |
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Alert meAnalysisAIv1 – Mar 28, 2026
A vulnerability classified as problematic was found in Tenda W18E 16.01.0.11. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use memory-safe languages or bounds-checking. Enable ASLR, DEP/NX, stack canaries. Use safe string functions.
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
This vulnerability is classified as Buffer Overflow (CWE-119), which allows attackers to corrupt memory to execute arbitrary code or crash the application. A vulnerability classified as problematic was found in Tenda W18E 16.01.0.11. Affected by this vulnerability is the function formSetAccountList of the file /goform/setModules. The manipulation of the argument Password leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. Affected products include: Tenda W18E Firmware.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionCVE.org
A vulnerability classified as problematic was found in Tenda W18E 16.01.0.11. Affected by this vulnerability is the function formSetAccountList of the file /goform/setModules. The manipulation of the argument Password leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.
Executive ViewAI
Organizations using A vulnerability classified as problematic should be aware of moderate risk from CVE-2025-3203, a buffer overflow vulnerability rated CVSS 5.3. Exploitation could cause memory corruption or application crashes. Organizations should apply vendor updates when available and monitor for exploitation.
Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.
Threat Intelligence Overview
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.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
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.
Affected Products (CPE)CVE.org
More in W18E Firmware
View allAn issue in Tenda W18E v.2.0 v.16.01.0.11 allows an attacker to execute arbitrary code via the editing functionality of
Tenda W18E V16.01.0.8(1576) has a command injection vulnerability via the hostName parameter in the formSetNetCheckTools
Tenda W18E V16.01.0.8(1576) contains a stack overflow vulnerability via the portMirrorMirroredPorts parameter in the for
A stack overflow vulnerability in the Tenda W18E V16.01.0.8(1625) web management portal allows an authenticated remote a
Tenda W18E v2.0 v16.01.0.11 was discovered to contain a stack overflow in the wifiSSID parameter at /goform/setModules.
Tenda W18E v2.0 v16.01.0.11 was discovered to contain a stack overflow in the wifiPwd parameter at /goform/setModules. R
A sensitive information disclosure vulnerability in the Tenda W18E V16.01.0.8(1625) web management portal allows an unau
Hardcoded credentials in Tenda W18E V16.01.0.8(1625) allows unauthenticated remote attackers to gain root access to the
Tenda W18E V16.01.0.8(1625) suffers from authentication bypass in the web management portal allowing an unauthorized rem
A default credentials vulnerability in Tenda W18E V16.01.0.8(1625) allows unauthenticated remote attackers to access the
Tenda W18E V16.01.0.8(1625) is vulnerable to Incorrect Access Control. Rated high severity (CVSS 8.8), this vulnerabilit
Tenda W18E V16.01.0.8(1625) is vulnerable to Buffer Overflow. Rated high severity (CVSS 8.0), this vulnerability is low
Exploit-DB