# CVE-2021-31755: A Tenda AC11 Router bug is being used in attacks

Status: Being used now (CISA KEV, added 2021-11-03)
Who: 
Do this: 

## Agent prompt (read-only)
Read-only check, change nothing, send nothing anywhere.
Is Tenda AC11 Router (CVE-2021-31755) installed or running on this machine or in this project?
1. Find every copy and its version (apps, packages, containers, lockfiles).
2. Compare each version against the vendor's fixed version for CVE-2021-31755. Quote the vendor page you used.
3. Report a table: where, version, fixed version, status (exposed / fixed / not installed / unsure).
4. List the exact update steps, but do not run them.

## Official description
Tenda AC11 devices contain a stack buffer overflow vulnerability in /goform/setmac which allows attackers to execute code via a crafted post request.

## Sources
- https://nvd.nist.gov/vuln/detail/CVE-2021-31755
- https://nvd.nist.gov/vuln/detail/CVE-2021-31755

Generated by isitexploited.org from public sources. Verify version numbers against the vendor before acting.