Stack Overflow Vulnerability in Tenda G1 and G3 Routers
CVE-2021-45991

7.5HIGH

Key Information:

Vendor

Tenda
Status
G1 Firmware
Vendor
CVE Published:
4 February 2022

What is CVE-2021-45991?

Tenda G1 and G3 routers running firmware version 15.11.0.17(9502)_CN are susceptible to a stack overflow vulnerability in the formAddVpnUsers function. This exploit allows attackers to leverage the vpnUsers parameter for executing Denial of Service attacks, potentially disrupting router functionality and affecting users' access to network services.

References

https://github.com/pjqwudi/my_vuln/blob/main/Tenda/vuln_6...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2021-45991 : Stack Overflow Vulnerability in Tenda G1 and G3 Routers