CVE-2026-7192: CWE-121 Stack-based buffer overflow in Shenzhen Dbit Network Equipment T-CPE301K 4G Mini WiFi Router
A stack-based buffer overflow vulnerability in the Dbit T-CPE301K 4G WiFi minirouter allows an authenticated attacker to cause a denial of service (DoS) and a system reboot via a manipulated HTTP POST request directed at the endpoint ‘/js/common/do_cmd.js’ endpoint containing an excessively long parameter, which overwrites the PC and RA registers.
AI Analysis
Technical Summary
This vulnerability involves a stack-based buffer overflow in the T-CPE301K 4G Mini WiFi Router from Shenzhen Dbit Network Equipment. The flaw is triggered via an HTTP POST request to the '/js/common/do_cmd.js' endpoint containing an overly long parameter, which overwrites the program counter (PC) and return address (RA) registers. This leads to a denial of service condition and system reboot. The vulnerability has a CVSS 4.0 base score of 9.3, indicating critical severity. There is no indication of known exploits in the wild or available patches.
Potential Impact
Successful exploitation results in denial of service by causing the router to reboot unexpectedly. This disrupts network connectivity and availability of the affected device. No information is provided about remote code execution or data compromise.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are currently available. Until a patch is released, restrict access to the affected endpoint and monitor for suspicious HTTP POST requests targeting '/js/common/do_cmd.js'.
CVE-2026-7192: CWE-121 Stack-based buffer overflow in Shenzhen Dbit Network Equipment T-CPE301K 4G Mini WiFi Router
Description
A stack-based buffer overflow vulnerability in the Dbit T-CPE301K 4G WiFi minirouter allows an authenticated attacker to cause a denial of service (DoS) and a system reboot via a manipulated HTTP POST request directed at the endpoint ‘/js/common/do_cmd.js’ endpoint containing an excessively long parameter, which overwrites the PC and RA registers.
CVSS v4.0
Score 9.3critical
Affected software
Shenzhen Dbit Network Equipment
T-CPE301K 4G Mini WiFi Router
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a stack-based buffer overflow in the T-CPE301K 4G Mini WiFi Router from Shenzhen Dbit Network Equipment. The flaw is triggered via an HTTP POST request to the '/js/common/do_cmd.js' endpoint containing an overly long parameter, which overwrites the program counter (PC) and return address (RA) registers. This leads to a denial of service condition and system reboot. The vulnerability has a CVSS 4.0 base score of 9.3, indicating critical severity. There is no indication of known exploits in the wild or available patches.
Potential Impact
Successful exploitation results in denial of service by causing the router to reboot unexpectedly. This disrupts network connectivity and availability of the affected device. No information is provided about remote code execution or data compromise.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are currently available. Until a patch is released, restrict access to the affected endpoint and monitor for suspicious HTTP POST requests targeting '/js/common/do_cmd.js'.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- INCIBE
- Date Reserved
- 2026-04-27T13:40:23.725Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6abbb034f7a7c541065fdf7c
Added to database: 09/29/2026, 12:33:56 UTC
Last enriched: 09/29/2026, 12:47:47 UTC
Last updated: 09/29/2026, 18:20:12 UTC
Views: 12
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