Buffer Overflow Vulnerability in Zyxel NBG-418N v2 Router
CVE-2023-22922

7.5HIGH

Key Information:

Vendor
Zyxel
Status
Nbg-418n V2 Firmware
Vendor
CVE Published:
1 May 2023

Summary

The Zyxel NBG-418N v2 is susceptible to a buffer overflow vulnerability affecting firmware versions prior to V1.00(AARP.14)C0. When telnet is enabled, an unauthenticated remote attacker can send specially crafted packets to the device, potentially leading to denial of service (DoS) conditions. This risk emphasizes the importance of keeping firmware updated and disabling unnecessary services like telnet to mitigate exposure.

Affected Version(s)

NBG-418N v2 firmware < V1.00(AARP.14)C0

References

https://www.zyxel.com/global/en/support/security-advisori...

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.