CVE-2021-21879

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

CVSS v3.1

8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.0

9.9 CRITICALCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS v2.0

9.0 HIGHAV:N/AC:L/Au:S/C:C/I:C/A:C

EPSS

3.66% chance of exploitation in the next 30 days, 89th percentile

Published

2021-12-22

Updated

2024-08-03

Proof-of-concept exploits (1)

• https://talosintelligence.com/vulnerability_reports/TALOS-2021-1323

References

• CVE Record
• NVD entry

Related

• CVE-2021-21878
• CVE-2021-21880
• CVE-2021-21877
• CVE-2021-21881
• CVE-2021-21876
• CVE-2021-21882