Risk | Critical |
Patch available | NO |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2024-40891 |
CWE-ID | CWE-77 |
Exploitation vector | Network |
Public exploit | This vulnerability is being exploited in the wild. |
Vulnerable software |
Zyxel CPE Series Hardware solutions / Routers & switches, VoIP, GSM, etc |
Vendor | ZyXEL Communications Corp. |
Security Bulletin
This security bulletin contains one critical risk vulnerability.
EUVDB-ID: #VU103449
Risk: Critical
CVSSv4.0: [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/E:A/U:Red]
CVE-ID: CVE-2024-40891
CWE-ID:
CWE-77 - Command injection
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary commands on the target system.
The vulnerability exists due to improper input validation. A remote unauthenticated attacker can send specially crafted packets to the telnet interface of a device and execute arbitrary OS commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Note, the vulnerability is being actively exploited in the wild. MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsZyxel CPE Series: All versions
CPE2.3 External linkshttp://www.greynoise.io/blog/active-exploitation-of-zero-day-zyxel-cpe-vulnerability-cve-2024-40891
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?