Buffer Overflow Vulnerability in Zyxel NR7101 Firmware
CVE-2023-27989

6.5MEDIUM

Key Information:

Vendor

Zyxel
Status
Nr7101 Firmware
Vendor
CVE Published:
5 June 2023

What is CVE-2023-27989?

A vulnerability exists in the CGI program of Zyxel's NR7101 firmware, affecting versions prior to V1.00(ABUV.8)C0. This buffer overflow flaw may allow a remote authenticated attacker to manipulate the device by sending specially crafted HTTP requests. Such actions can result in denial of service (DoS) conditions, thereby disrupting device functionality and network service.

Affected Version(s)

NR7101 firmware < V1.00(ABUV.8)C0

References

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

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.