SB2026092126 - Denial of service in Moxa TN-4500B
Published: September 21, 2026
Security Bulletin ID
SB2026092126
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Out-of-bounds write (CVE-ID: CVE-2026-15579)
CWE-ID: CWE-787 - Out-of-bounds write
CVSSv4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to improper validation of the username field length during Web login processing. A remote attacker can trigger an out-of-bounds write and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.