CVE-2026-15579

State: Published
Severity: 8.8 High
Published: Sep 18, 2026
Updated: Sep 18, 2026
Reserved: Jul 13, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	8.8 High	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	Moxa

Weaknesses

CWE-787 Out-of-bounds Write

Affected Products

Product	Versions
TN-4500B SeriesMoxa	1.0 through 2.0Affected 2.1Not affected

References

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

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