What is CVE-2021-44158?

CVE-2021-44158 is a high-severity vulnerability in Asus Rt-ax56u, classified under Stack-based Buffer Overflow. CVSS score: 8.0/10. Published 2022-01-03.

How severe is CVE-2021-44158?

High severity. CVSS v3 base score is 8.0 out of 10.

Is CVE-2021-44158 known to be exploited?

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

Buffer overflow in Asus Rt-ax56u

CVE-2021-44158

ASUS RT-AX56U Wi-Fi Router is vulnerable to stack-based buffer overflow due to improper validation for httpd parameter length. An authenticated local area network attacker can launch arbitrary code execution to control the system or disrup…

Vulnerability class: Buffer Overflow

EPSS: 0.002 (36.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Asus Rt-ax56u — versions 3.0.0.4.386.44266

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

Public proof-of-concept exploits

References

www.twcert.org.tw/tw/cp-132-5431-d23be-1.html (x_refsource_MISC)

Frequently asked questions

What is CVE-2021-44158?: CVE-2021-44158 is a high-severity vulnerability in Asus Rt-ax56u, classified under Stack-based Buffer Overflow. CVSS score: 8.0/10. Published 2022-01-03.
How severe is CVE-2021-44158?: High severity. CVSS v3 base score is 8.0 out of 10.
Is CVE-2021-44158 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.