CVE-2021-42659

Public Exploit

Description

There is a buffer overflow vulnerability in the Web server httpd of the router in Tenda router devices such as Tenda AC9 V1.0 V15.03.02.19(6318) and Tenda AC9 V3.0 V15.03.06.42_multi. When setting the virtual service, the httpd program will crash and exit when the super-long list parameter occurs.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.05%
Third-Party Advisory github.com Third-Party Advisory org.cn
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/Lyc-heng/routers/blob/main/routers/stack4.md third party advisory exploit
https://www.cnvd.org.cn/flaw/show/CNVD-2021-24948 third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-42659?
CVE-2021-42659 has been scored as a medium severity vulnerability.
How to fix CVE-2021-42659?
To fix CVE-2021-42659, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-42659 being actively exploited in the wild?
It is possible that CVE-2021-42659 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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