vulnerability

Aruba AOS-CX: CVE-2021-33626: SMM Privilege Escalation Vulnerability

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:P)
Published
Feb 1, 2022
Added
Feb 24, 2025
Modified
Apr 2, 2026

Description

A vulnerability exists in SMM (System Management Mode) branch that registers a SWSMI handler that does not sufficiently check or validate the allocated buffer pointer(QWORD values for CommBuffer). This can be used by an attacker to corrupt data in SMRAM memory and even lead to arbitrary code execution.

Solution

aruba-aos-cx-cve-2021-33626
Title
Rapid7 Labs

2026 Global Threat Landscape Report

The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.