CVE-2026-21409CWE-639

Improper authorization vulnerability exists in RICOH Streamline NX 3.5.1 to 24R3

High · published January 9, 2026

CVSS v4.0
8.2
EPSS
0%
Percentile
25.1
In the wild
Unconfirmed
What it is

Improper authorization vulnerability exists in RICOH Streamline NX 3.5.1 to 24R3. If a man-in-the-middle attack is conducted on the communication between the affected product and its user, and some crafted request is processed by the product, the user's registration information and/or OIDC (OpenID Connect) tokens may be retrieved.

The record
Technical detail
CVSS v4.0
8.2 · HIGH
Vector
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
EPSS
0.00332 · 25.1th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-01-09T07:15Z
EPSS history
Timeline
  • 09 JAN 07:15Z
    Improper authorization vulnerability exists in RICOH Streamline NX 3.5.1 to 24R3
    cvelistv5