CVE-2026-96257

CRITICAL 10.0

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

CVSS Score

10.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-121 CWE-119
Vendor	fast
Product	fac1203r gigabit edition
Published	Sep 23, 2026

Stay Ahead of the Next One

Get instant alerts for fast fac1203r gigabit edition

Be the first to know when new critical vulnerabilities affecting fast fac1203r gigabit edition are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Fast / FAC1203R Gigabit Edition

2.0.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/408707 vuldb.com: https://vuldb.com/vuln/408707/cti vuldb.com: https://vuldb.com/cve/CVE-2026-96257 vuldb.com: https://vuldb.com/submit/901889 github.com: https://github.com/xiaobor123/vuls-find-VxWorks/tree/main/vul-find-FAST_FAC1203R-copy_msg_element

Credits

🔍 xiaobor123 (VulDB User) VulDB CNA Team