Path Traversal in Lantronix Premierwave 2050

CVE-2021-21896

A directory traversal vulnerability exists in the Web Manager FsBrowseClean functionality of Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU). A specially crafted HTTP request can lead to arbitrary file deletion. An attacker can make an authenticated HTTP request to trigger this vulnerability.

Vulnerability class: Path Traversal (Directory Traversal)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H.

EPSS exploit prediction

EPSS: 0.022 (81.5th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 81.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2021-21896: held from 0.022 to 0.022.

EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-21896?
CVE-2021-21896 is a medium-severity vulnerability in Lantronix Premierwave 2050, classified under Path Traversal. CVSS score: 6.5/10. Published 2021-12-22.
How severe is CVE-2021-21896?
Medium severity. CVSS v3 base score is 6.5 out of 10.