CVE-2021-31538

HIGH
Published Jun 10, 20215y ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Jun 10, 2021 5y ago
Last Modified Jun 17, 2026 2w ago

Description

LANCOM R&S Unified Firewall (UF) devices running LCOS FX 10.5 allow Relative Path Traversal.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability None

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-22 Path Traversal Resource Mgmt

Affected Products 9

VendorProductVersionRange
lancom-systemslcos_fx10.5any
lancom-systemslcos_fx10.5any
lancom-systemslcos_fx10.5any
lancom-systemslcos_fx10.5any
lancom-systemsuf-160*any
lancom-systemsuf-260*any
lancom-systemsuf-500*any
lancom-systemsuf-60*any
lancom-systemsuf-910*any

References 1

  • syss.de https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2021-010.txt
    ExploitThird Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.