8.2

CVE-2026-21409: ricoh company, ltd. ricoh streamline nx

CVSS: 8.2v4.0HighDeferred
Published 09-01-2026Last modified 09-01-2026
Open JSON

Vulnerability summary

CVE-2026-21409 is a high (CVSS 8.2) vulnerability in ricoh company, ltd. ricoh streamline nx. EPSS estimates a 0.33% chance of exploitation in the next 30 days, higher than 25% of scored vulnerabilities.

Overall risk
33/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.2/10
010
High · v4.0 (CVE.org)
EPSS score
0.33%
0%100%
Low · -0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 09-01-2026
    PublishedVulnerability first disclosed.
  2. 09-01-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

4 scores · 2 sources · 2 versions

EPSS trend

Probability

0.33%

Chance of exploitation in the next 30 days

Percentile

25%

Versus all other CVEs

30-day change

-0.01 pp

From 0.34% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.33%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ricoh company, ltd.1 product

1 vendor · 1 product

References

2 links