CVE-2025-65221: Tenda AC21 V16.03.08.16 is vulnerable to Buffer Overflow via the list parameter of /goform/setPptpUserList

Medium severity · published Nov 20, 2025

CVE-2025-65221

Tenda AC21 V16.03.08.16 is vulnerable to Buffer Overflow via the list parameter of /goform/setPptpUserList

4.3

CVSS

0.3%

EPSS

On KEV

Description

Tenda AC21 V16.03.08.16 is vulnerable to Buffer Overflow via the list parameter of /goform/setPptpUserList.

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack vector

Adjacent

Complexity

Low

Privileges

None

User interaction

None

Confidentiality

None

Integrity

None

Availability

Low

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)0.3% · higher than 24% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Ac21 Firmware · Tenda

16.03.08.16 · source: NVD

Affected product

Ac21 Firmware

Tenda

All Ac21 Firmware CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2025-65221

CVE.org

https://www.cve.org/CVERecord?id=CVE-2025-65221

Exploit

https://github.com/Madgeaaaaa/MY_VULN_2/blob/main/Tenda/VULN2.md