Buffer Overflow Vulnerability in Tenda AC9 Routers
CVE-2021-42659

6.5MEDIUM

Key Information:

Vendor

Tenda
Status
Ac9 Firmware
Vendor
CVE Published:
24 May 2022

What is CVE-2021-42659?

A buffer overflow vulnerability exists in the httpd web server of Tenda AC9 router models. This issue arises when a super-long list parameter is set during virtual service configuration, which causes the httpd program to crash unexpectedly. This can result in loss of service and potential unauthorized access to the device.

References

https://github.com/Lyc-heng/routers/blob/main/routers/sta...
x_refsource_MISC
https://www.cnvd.org.cn/flaw/show/CNVD-2021-24948
x_refsource_MISC

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.