Improper Authentication Vulnerability in Zyxel NAS Firmware
CVE-2023-35137

7.5HIGH

Key Information:

Vendor

Zyxel
Status
NAS326 firmware
NAS542 firmware
Vendor
CVE Published:
30 November 2023

What is CVE-2023-35137?

An improper authentication vulnerability exists in Zyxel NAS326 and NAS542 devices, specifically within their authentication modules. An unauthenticated attacker could exploit this flaw by sending a specially crafted URL to a vulnerable device, potentially allowing access to sensitive system information. This vulnerability highlights the importance of robust authentication mechanisms in safeguarding device integrity.

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Affected Version(s)

NAS326 firmware V5.21(AAZF.14)C0

NAS542 firmware V5.21(ABAG.11)C0

References

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

CVSS V3.1

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

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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