CVE-2026-15579 — Moxa / TN-4500B Series

CVE-2026-15579

Moxa / TN-4500B Series PUBLISHED

Description (CNA)

An out-of-bounds write vulnerability exists in some of the Ethernet switches because of improper validation of the username field length during Web login processing. This may allow a remote attacker to submit a specially crafted overly long input, triggering a buffer overflow that can cause the authentication process to crash and result in a Denial of Service (DoS) attack.

Affected (CNA)

Vendor / product	Versions
Moxa / TN-4500B Series	affected 1.0 through 2.0; unaffected 2.1

CWE

CWE-787

References

https://www.moxa.com/en/support/product-support/security-advisory/mpsa-252620-cve-2026-15579-out-of-bounds-write-vulnerability-in-ethernet-switch

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.