Authorization bypass through user-controlled key in RICOH Streamline NX V3 - CVE-2026-21409
Published: January 9, 2026
Vulnerability identifier: #VU121113
CSH Severity: Medium
CVSS v4: 8.2 [CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-21409
CWE-ID: CWE-639
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to authorization bypass through user-controlled key. A remote attacker can perform a man-in-the-middle (MitM) attack and gain unauthorized access to sensitive information on the system.
Affected software
RICOH Streamline NX V3
How to mitigate CVE-2026-21409
Install updates from vendor's website.
RICOH Streamline NX V3 - addressed in versions 3.251.0(25R1), 3.252.0(25R2)