CVE-2026-101039

10 CRITICALpublic exploit available

Published 2026-09-28 · Updated 2026-09-28

AI risk analysis

Summary: This vulnerability allows remote attackers to execute arbitrary code by exploiting a stack-based buffer overflow in the copy_msg_element function of the devdiscover Service in FAST FAC1900R 20190827_2.0.2, posing a critical risk.
Exploitability: Exploitation is relatively straightforward given the remote execution capability and publicly available exploit references.
Blast radius: If exploited, this vulnerability could result in complete control of the affected device, leading to potential data loss, system compromise, and further propagation of the attack.
Detection: No reliable host or network indicator is derivable from the published description.
Prioritized remediation: Upgrade to FAST FAC1900R 20190827_2.0.3 or later.

rcebuffer-overflowremote-exploitcritical

Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.

NVD description

A vulnerability was identified in FAST FAC1900R 20190827_2.0.2. Affected by this issue is the function copy_msg_element of the component devdiscover Service. Such manipulation leads to stack-based buffer overflow. The attack can be executed remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Weaknesses

CWE-119, CWE-121

Public exploit & PoC references

https://github.com/xiaobor123/vuls-find-VxWorks/tree/main/vul-find-FAST_FAC1900R-copy_msg_element(2)

All references

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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