I29 Firmware
CVE-2023-50991
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V15 - Secure Coding and Architecture Buffer copy size validation
MITRE ATT&CK
1 technique across 1 tactic: Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 12.94%. |
| Exploit ScenarioDerived | A remote attacker could overflow a buffer to corrupt adjacent memory by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAIv1 – Mar 28, 2026
Buffer Overflow vulnerability in Tenda i29 versions 1.0 V1.0.0.5 and 1.0 V1.0.0.2, allows remote attackers to cause a denial of service (DoS) via the pingIp parameter in the pingSet function. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 12.9%.
Earlier versions of this analysis (1)
Buffer overflow in Tenda i29.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.
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 Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. Buffer Overflow vulnerability in Tenda i29 versions 1.0 V1.0.0.5 and 1.0 V1.0.0.2, allows remote attackers to cause a denial of service (DoS) via the pingIp parameter in the pingSet function. Affected products include: Tenda I29 Firmware.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
Buffer Overflow vulnerability in Tenda i29 versions 1.0 V1.0.0.5 and 1.0 V1.0.0.2, allows remote attackers to cause a denial of service (DoS) via the pingIp parameter in the pingSet function.
Executive ViewAI
Organizations using Tenda i29 face notable risk from CVE-2023-50991, a buffer overflow vulnerability rated CVSS 7.5. Exploitation could allow attackers to corrupt memory, crash the application, or potentially execute arbitrary code. With an EPSS score of 13%, exploitation is likely in exposed deployments. Organizations should apply vendor updates when available and consider compensating controls in the interim.
Apply vendor patch. If immediate patching is not feasible: (1) Enable ASLR and DEP where available; (2) Implement network segmentation; (3) Monitor for exploitation indicators.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
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.
Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.
Affected Products (CPE)CVE.org
More in I29 Firmware
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Tenda i29 v1.0 V1.0.0.5 was discovered to contain a command injection vulnerability via the sysScheduleRebootSet functio
Tenda i29 v1.0 V1.0.0.5 was discovered to contain a stack overflow via the ip parameter in the setPing function. Rated c
Tenda i29 v1.0 V1.0.0.5 was discovered to contain a buffer overflow via the rebootTime parameter in the sysScheduleReboo
Tenda i29 v1.0 V1.0.0.5 was discovered to contain a buffer overflow via the bandwidth parameter in the wifiRadioSetIndoo
Tenda i29 v1.0 V1.0.0.5 was discovered to contain a buffer overflow via the time parameter in the sysTimeInfoSet functio
Tenda i29 v1.0 V1.0.0.5 was discovered to contain a buffer overflow via the time parameter in the sysLogin function. Rat
Tenda i29 v1.0 V1.0.0.5 was discovered to contain a buffer overflow via the lanGw parameter in the lanCfgSet function. R
Tenda i29 v1.0 V1.0.0.5 was discovered to contain a buffer overflow via the ip parameter in the spdtstConfigAndStart fun
Tenda i29V1.0 V1.0.0.5 was discovered to contain a hardcoded password for root. Rated critical severity (CVSS 9.8), this
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