What is CVE-2021-21878?

CVE-2021-21878 is a medium-severity vulnerability in Lantronix Premierwave 2050, classified under Exposure of Resource to Wrong Sphere. CVSS score: 4.9/10. Published 2021-12-22.

How severe is CVE-2021-21878?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Vulnerability in Lantronix Premierwave 2050

CVE-2021-21878

A local file inclusion vulnerability exists in the Web Manager Applications and FsBrowse functionality of Lantronix PremierWave 2050 8.9.0.0R4. A specially-crafted series of HTTP requests can lead to local file inclusion. An attacker can make a series of authenticated HTTP requests to trigger this vulnerability.

EPSS: 0.012 (65.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

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-668 — Exposure of Resource to Wrong Sphere

References

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

Frequently asked questions

What is CVE-2021-21878?: CVE-2021-21878 is a medium-severity vulnerability in Lantronix Premierwave 2050, classified under Exposure of Resource to Wrong Sphere. CVSS score: 4.9/10. Published 2021-12-22.
How severe is CVE-2021-21878?: Medium severity. CVSS v3 base score is 4.9 out of 10.