CVE-2021-21892

moderate-risk
Published 2021-12-22

A stack-based buffer overflow vulnerability exists in the Web Manager FsUnmount functionality of Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU). A specially crafted HTTP request can lead to remote code execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.

Do I need to act?

~
7.1% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.9/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Lantronix

References (2)

Exploit https://talosintelligence.com/vulnerability_reports/TALOS-2021-1335
Exploit https://talosintelligence.com/vulnerability_reports/TALOS-2021-1335
47
/ 100
moderate-risk
Severity 33/34 · Critical
Exploitability 9/34 · Low
Exposure 5/34 · Minimal