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CVE-2026-15579

TN-4500B Series · Vulnerability

CVSS 4.0 8.8 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-15579

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-15579

Published

TN-4500B Series

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Moxa",
                    "product": "TN-4500B Series",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "1.0",
                            "lessThanOrEqual": "2.0",
                            "versionType": "custom"
                        },
                        {
                            "status": "unaffected",
                            "version": "2.1",
                            "versionType": "custom"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

Original source record · Cite this exact observation · Complete original publisher JSON