ACTIVELY EXPLOITED

CVE-2021-1497: Cisco HyperFlex HX Installer Virtual Machine Command Injection Vulnerability

Facts
VendorCisco
ProductHyperFlex HX
Actively exploitedYes
Added to CISA KEV3 Nov 2021
CISA federal deadline17 Nov 2021
Weakness (CWE)CWE-78

Required action (CISA's text)

Apply updates per vendor instructions.

Description (NVD)

Cisco HyperFlex HX Installer Virtual Machine contains an insufficient input validation vulnerability which could allow an attacker to execute commands on an affected device as the root user.

SOURCES

Other Cisco flaws

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.