Stack-based buffer overflow in Archer C90 - CVE-2021-35003
Published: January 18, 2022
Vulnerability identifier: #VU59684
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-35003
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the handling of DNS responses. A remote unauthenticated attacker can send a specially crafted DNS message, trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Archer C90
How to mitigate CVE-2021-35003
Install updates from vendor's website.
Archer C90 - update to 6