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CVE-2026-96257

Fast FAC1203R Gigabit Edition Device Discovery Service copy_msg_element stack-based overflow

CVSS 4.0 10.0 CRITICALCVSS 3.1 10.0 CRITICALCVSS 3.0 10.0 CRITICALCVSS 2.0 10.0 Check source for fixed versionsKEV status unknown

Original advisory

Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.

cve-program · CVE-2026-96257

Published

A flaw has been found in Fast FAC1203R Gigabit Edition 2.0.4. Affected by this issue is the function copy_msg_element of the component Device Discovery Service. Executing a manipulation can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-96257

Published

FAC1203R Gigabit Edition

Vendor product

Publisher's version information

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

{
                    "vendor": "Fast",
                    "product": "FAC1203R Gigabit Edition",
                    "versions": [
                        {
                            "version": "2.0.4",
                            "status": "affected"
                        }
                    ],
                    "cpes": [
                        "cpe:2.3:a:fast:fac1203r_gigabit_edition:*:*:*:*:*:*:*:*"
                    ],
                    "modules": [
                        "Device Discovery Service"
                    ]
                }

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