SB2026052625 - Missing Authorization in Zyxel switches
Published: May 26, 2026
Security Bulletin ID
SB2026052625
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Missing Authorization (CVE-ID: CVE-2026-4795)
CWE-ID: CWE-862 - Missing Authorization
CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to bypass authorization checks.
The vulnerability exists due to missing authorization. A remote attacker on the local network can send a specially crafted HTTP request and read the system configuration from a log file.
Remediation
Install update from vendor's website.