EUVD-2025-26372
GHSA-4c98-xmr9-5fq8
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A06:2021 - Vulnerable and Outdated Components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 7.4 (HIGH). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required. EPSS exploitation probability: 0.33%. |
| 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 was identified in Tenda CH22 1.0.0.1. Rated high severity (CVSS 7.4), 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.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
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 was identified in Tenda CH22 1.0.0.1. The manipulation of the argument samba_userNameSda leads to buffer overflow. It is possible to initiate the attack remotely. The exploit is publicly available and might be used. Affected products include: Tenda Ch22 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:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Primary rating from Vendor (vuldb) · only source for this CVE.
CVSS VectorVendor: vuldb
DescriptionCVE.org
A vulnerability was identified in Tenda CH22 1.0.0.1. This issue affects the function formSetSambaConf of the file /goform/SetSambaConf. The manipulation of the argument samba_userNameSda leads to buffer overflow. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.
Executive ViewAI
Organizations using A vulnerability face moderate risk from CVE-2025-9813, a buffer overflow vulnerability rated CVSS 7.4. Exploitation could allow attackers to corrupt memory, crash the application, or potentially execute arbitrary code. Organizations should apply vendor updates when available and consider compensating controls in the interim.
Apply vendor patch. If immediate patching is not feasible: (1) Implement network-level access controls to limit exposure; (2) Enable enhanced monitoring and alerting; (3) Apply principle of least privilege.
Threat Intelligence Overview
NVD
CVE.org
EPSS
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.
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Critical stack-based buffer overflow vulnerability in Tenda CH22 version 1.0.0.1 affecting the /goform/addUserName endpo
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A stack-based buffer overflow (CWE-119) in the Tenda CH22 router firmware version 1.0.0.1 lets remote attackers crash or
A buffer overflow in the Tenda CH22 router firmware (version 1.0.0.1) lets attackers crash or potentially execute code o
Buffer overflow in Tenda CH22 firmware 1.0.0.1 allows an authenticated attacker with access to the web management interf
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Exploit-DB