What is CVE-2021-21895?

CVE-2021-21895 is a high-severity vulnerability in Lantronix Premierwave 2050, classified under Path Traversal. CVSS score: 7.2/10. Published 2021-12-22.

How severe is CVE-2021-21895?

High severity. CVSS v3 base score is 7.2 out of 10.

Path Traversal in Lantronix Premierwave 2050

CVE-2021-21895

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

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.023 (81.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Lantronix Premierwave_2050
Lantronix Premierwave_2050_firmware — versions 8.9.0.0
N/a Lantronix — versions Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU)

Weakness classification (CWE)

CWE-22 — Path Traversal

References

talos-cna@cisco.com (Technical Description, Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-21895?: CVE-2021-21895 is a high-severity vulnerability in Lantronix Premierwave 2050, classified under Path Traversal. CVSS score: 7.2/10. Published 2021-12-22.
How severe is CVE-2021-21895?: High severity. CVSS v3 base score is 7.2 out of 10.