Vulnerability identifier: #VU26402
Vulnerability risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-121
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Archer A7
Hardware solutions /
Routers for home users
Vendor: TP-Link
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when handling the 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.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Archer A7: 190726
External links
http://www.zerodayinitiative.com/advisories/ZDI-20-333/
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.