High severity · published Jan 3, 2022
CVE-2021-44158
ASUS RT-AX56U Wi-Fi Router is vulnerable to stack-based buffer overflow due to improper validation for httpd parameter length
8.0
CVSS
0.7%
EPSS
No
On KEV
Description
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 disrupt service.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 53% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RF
Rt-ax56u Firmware · Asus
3.0.0.4.386.44266 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-44158
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-44158
Third Party Advisory
https://www.twcert.org.tw/tw/cp-132-5431-d23be-1.html
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