CVE-2021-1498

Cisco HyperFlex HX Command Injection Vulnerabilities

CRITICAL

9.8

CVSS Score

Published: May 6, 2021 at 12:41 PM UTC

Updated: June 17, 2026 at 03:31 AM UTC

8 products affected across 1 vendorHyperflex Hx Data PlatformHyperflex Hx220C M5Hyperflex Hx220C Edge M5

Using Cisco HyperFlex HX Data Platform by Cisco?

Get instant alerts when new vulnerabilities affect Cisco HyperFlex HX Data Platform - before attackers find them.

Real-time alertsTrack your software stackFree plan available

Start Free Sign In

Severity

CRITICAL9.8

Exploitation

CISA KEV

Exploit prediction

EPSS 100%

SSVC

Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score100.0%

EPSS (Exploit Prediction Scoring System) estimates a 100.0% chance this CVE is exploited in the wild within the next 30 days — higher than 100% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

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 tomcat8 user.

Required Action

Apply updates per vendor instructions.

Ransomware Use

Unknown

Added to KEV

Nov 3, 2021

Remediation Due

Nov 17, 2021

1804 days overdue

Notes

https://nvd.nist.gov/vuln/detail/CVE-2021-1498

Description

Multiple vulnerabilities in the web-based management interface of Cisco HyperFlex HX could allow an unauthenticated, remote attacker to perform command injection attacks against an affected device. For more information about these vulnerabilities, see the Details section of this advisory.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Hyperflex Hx Data Platform · Cisco

95%

v < 4.0(2e)4.5 ≤ v < 4.5(2a)

Affected range stops below 4.0(2e), so it looks safe — our inference, not a vendor statement

Affected range stops below 4.5(2a), so it looks safe — our inference, not a vendor statement

cisco-hyperflex-hx220c-af-m5 (environment) · cisco-hyperflex-hx220c-all-nvme-m5 (environment) · cisco-hyperflex-hx220c-edge-m5 (environment) · cisco-hyperflex-hx220c-m5 (environment) · cisco-hyperflex-hx240c (environment) · cisco-hyperflex-hx240c-af-m5 (environment) · cisco-hyperflex-hx240c-m5 (environment)

Hyperflex Hx220C Af M5 · Ciscodevice

80%

All versions

Hyperflex Hx220C All Nvme M5 · Ciscodevice

80%

All versions

Hyperflex Hx220C Edge M5 · Ciscodevice

80%

All versions

Hyperflex Hx220C M5 · Ciscodevice

80%

All versions