SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-21885

A directory traversal vulnerability exists in the Web Manager FsMove functionality of Lantronix PremierWave 2050 8.9.0.0R4.

HIGH 7.2EPSS 2.46%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.46%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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

CVSS 3.1
7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS
2.46% probability · 84th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-22
Affected
lantronix/premierwave 2050 firmware
Source
talos-cna@cisco.com
EPSS trend
0%3%5%26 October 2026: 2.46%26 October 202626 October 2026

EPSS 2.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.