CVE-2026-21409_CVE-2026-21409

5.9 / 10

MEDIUM

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

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.

Basic Information

ID CVE-2026-21409

Source jpcert

Published Jan 9, 2026 at 07:15

Affected Product

Vendor Ricoh Company, Ltd.

Product RICOH Streamline NX

Version 3.5.1 to 24R3

Affected Versions Ricoh Company, Ltd. RICOH Streamline NX 3.5.1 to 24R3

CWE Classification

CWE-639

References

{
    "lastseen": "",
    "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.",
    "published": "2026-01-09T07:15:52.994Z",
    "modified": "2026-01-09T07:15:52.994Z",
    "type": "cve",
    "title": "CVE-2026-21409",
    "source": "jpcert",
    "references": "https://www.ricoh.com/products/security/vulnerabilities/vul?id=ricoh-2025-000011\nhttps://jvn.jp/en/jp/JVN12770174/",
    "id": "CVE-2026-21409",
    "bulletinFamily": "",
    "cwe": [
        "CWE-639"
    ],
    "cvelist": null,
    "sourceData": "Ricoh Company, Ltd. RICOH Streamline NX 3.5.1 to 24R3",
    "sourceHref": "",
    "cvss": {
        "score": 5.9,
        "severity": "MEDIUM",
        "vector": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
        "version": "3.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "RICOH Streamline NX",
    "version": "3.5.1 to 24R3",
    "vendor": "Ricoh Company, Ltd.",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}