How severe is CVE-2021-21891?

This vulnerability has a severity rating of CRITICAL with a CVSS score of 9.1 out of 10.

What type of vulnerability is CVE-2021-21891?

This is classified as CWE-121, which is a common weakness in software security.

CVE-2021-21891

CRITICAL Year: 2021

CVSS v3 Score

9.1

Critical

CVSS v2 Score

6.5

Medium

Weakness Type

CWE-121

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Vulnerability Description

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

CVE-2021-21887

CRITICAL

CVSS:9.1(Critical)

A stack-based buffer overflow vulnerability exists in the Web Manager SslGenerateCSR functionality of Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU). A specially crafted HTTP request can lead to remot...

CWE-1212021

CVE-2021-21890

CRITICAL

CVSS:9.1(Critical)

CWE-1212021

CVE-2022-26002

CRITICAL

CVSS:9.1(Critical)

A stack-based buffer overflow vulnerability exists in the console factory functionality of InHand Networks InRouter302 V3.5.4. A specially-crafted network request can lead to remote code execution. An...

CWE-1212022

CVE-2024-20518

CRITICAL

CVSS:9.1(Critical)

A vulnerability in the web-based management interface of Cisco Small Business RV042, RV042G, RV320, and RV325 Routers could allow an authenticated, Administrator-level, remote attacker to execute arbi...

CWE-1212024