VULNERABILITY INTELLIGENCE

CVE-2021-21887

CVSS score9.1 CRITICAL
EPSS probability3.09%
CISA KEVNot currently listed
Published2021-12-22
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Description

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 remote code execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.

Weakness classification

  • talos-cna@cisco.com: CWE-121
  • nvd@nist.gov: CWE-787

Primary references