CVE-2026-101039: FAST FAC1900R devdiscover Service copy_msg_element stack-based overflow
A vulnerability was identified in FAST FAC1900R 201908272.0.2. Affected by this issue is the function copymsgelement 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.
Affected Software
Event History
Frequently Asked Questions
What does an attacker need to exploit this issue?
The issue is remotely exploitable with low attack complexity and requires no privileges or user interaction. Public exploit availability is reported, which may make exploitation more likely.
Which deployments should be treated as affected?
FAST FAC1900R devices running version 20190827_2.0.2 are identified as affected. The provided information does not state whether other versions are affected.
What should teams do if a patch is not available?
The vendor reportedly did not respond to the disclosure, and no patch information is provided. Restrict remote access to the devdiscover service and isolate affected devices from untrusted networks where operationally possible.