by Kastro
Paper/Archive/CVE-2026-96257

CVE-2026-96257

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

EPSS 1%public exploitCVSS 10.0
critical.is priorityof 100
53
CVSS 10.0 (CNA)10.0 / 10 × 3030.0Not in CISA KEV+300.0EPSS percentile 64.0.640 × 2012.8Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
FAC1203R Gigabit Edition2.0.4–CNA

Scores by source

VulDB (CNA)10.0CVSS: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
VulDB (CNA)10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
VulDB (CNA)10.0CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

writeupvuldb.com/vuln/408707refvuldb.com/vuln/408707/ctiwriteupvuldb.com/cve/CVE-2026-96257writeupvuldb.com/submit/901889exploitgithub.com/xiaobor123/vuls-find-VxWorks/tree/main/vul-find-FAST_FAC1203R-copy_msg_element