What is CVE-2021-33903?

CVE-2021-33903 is a high-severity vulnerability in Lancom-Systems Lcos. CVSS score: 8.8/10. Published 2021-10-07.

How severe is CVE-2021-33903?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Lancom-Systems Lcos

CVE-2021-33903

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.)

EPSS: 0.011 (61.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Lancom-systems Lcos — versions 10.42.0473
N/a — versions n/a

References

cve@mitre.org (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-33903?: CVE-2021-33903 is a high-severity vulnerability in Lancom-Systems Lcos. CVSS score: 8.8/10. Published 2021-10-07.
How severe is CVE-2021-33903?: High severity. CVSS v3 base score is 8.8 out of 10.