CVE-2026-96257criticalCWE-119CWE-121

CVE-2026-96257: critical vulnerability in Fast FAC1203R Gigabit Edition

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

Published

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

48Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 10epss 1.0%
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
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