CVE-2021-33903

HIGH
Published Oct 7, 20214y ago · Modified Jun 17, 20262w ago
8.8 CVSS 3.1
High
Find Similar
Published Oct 7, 2021 4y ago
Last Modified Jun 17, 2026 2w ago

Description

In LCOS 10.40 to 10.42.0473-RU3 with SNMPv3 enabled on LANCOM devices, changing the password of the root user via the CLI does not change the password of the root user for SNMPv3 access. (However, changing the password of the root user via LANconfig does change the password of the root user for SNMPv3 access.)

CVSS Details

Base Score
8.8
Exploitability
2.8
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

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

Exploit & Patch Status
No Known Exploit
No Patch Available

Affected Products 5

VendorProductVersionRange
lancom-systemslcos*≥10.40  –  <10.42.0473
lancom-systemslcos10.42.0473any
lancom-systemslcos10.42.0473any
lancom-systemslcos10.42.0473any
lancom-systemslcos10.42.0473any

References 1

  • nmedv.de https://www.nmedv.de/wp-content/uploads/2021/10/NME-2021-001.txt
    Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.