CVE-2021-21892

Common vulnerabilities & exposures (CVE)

CVE database CVE database blogpost Release & EoL database

Published at: - 22-12-2021 08:15

Last modified: - 28-04-2022 09:31

Total changes: - 4

Description

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Low

Attack complexity

Network

Attack vector

High

Availability

High

Confidentiality

High

Integrity

Low

Privileges required

Changed

Scope

None

User interaction

9.9

Base score

3.1

6.0

Exploitability score

Impact score

Verification logic

AND

vendor=lantronix AND product=premierwave_2050_firmware AND version=8.9.0.0 AND update=r4

vendor=lantronix AND product=premierwave_2050 AND version=-

Reference

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1335

Keywords

CVE-2021-21892

Common vulnerabilities & exposures (CVE)

Description

Common Vulnerability Scoring System (CVSS)

Verification logic

Reference

NVD

CVE-2021-21892

CVE

Common vulnerabilities & exposures

CVSS

Common vulnerability scoring system

Security

Vulnerabilities

Exposures