What is CVE-2021-44352?

CVE-2021-44352 is a critical-severity vulnerability in Tendacn Ac15, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2021-12-03.

How severe is CVE-2021-44352?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2021-44352 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Tendacn Ac15

CVE-2021-44352

A Stack-based Buffer Overflow vulnerability exists in the Tenda AC15 V15.03.05.18_multi device via the list parameter in a post request in goform/SetIpMacBind.

Vulnerability class: Buffer Overflow

Published 2021-12-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.134 (96.3th percentile), scored 2026-09-30.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 96.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.134 · newest: 0.134 · change: 0.000

Affected products

Tendacn Ac15
Tendacn Ac15 Firmware — versions 15.03.05.18_multi

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

Public proof-of-concept exploits

References

github.com/zhlu32/cve/blob/main/tenda/Tenda-ac15-buffer-overflow.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-44352?: CVE-2021-44352 is a critical-severity vulnerability in Tendacn Ac15, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2021-12-03.
How severe is CVE-2021-44352?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2021-44352 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.