Cisco HyperFlex HX Data Platform Command Injection Vulnerability
Cisco — Cisco HyperFlex HX Data Platform
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.
9.8
100.0%
Vector breakdown
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Published
- May 6, 2021
- Modified
- Jun 17, 2026
- Added to KEV
- Nov 3, 2021
- Federal patch due
- Nov 17, 2021
CISA required action
Apply updates per vendor instructions.
Weakness classification
Affected packages
Proof-of-concept & exploitation references
Weaponization
Public repositories whose name or description references CVE-2021-1498, found via a live GitHub search at request time. These are community-sourced signals, not a verified working exploit — cross-check each one before relying on it, and treat higher star counts and recent activity as (weak) corroboration, not proof.
No public GitHub repositories referencing CVE-2021-1498 were found at last check. Absence here is not proof no exploit exists — see the references below for vendor advisories and write-ups.
References
How this class of flaw gets exploited
Frequently asked questions
What is CVE-2021-1498?
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.
How severe is CVE-2021-1498?
CVE-2021-1498 has a CVSS base score of 9.8 out of 10 (CVSS 3.1).
Is CVE-2021-1498 actively exploited in the wild?
Yes. CVE-2021-1498 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added Nov 3, 2021, meaning CISA has confirmed evidence of active exploitation.
What is the EPSS score for CVE-2021-1498?
100.0% - meaning FIRST.org's EPSS model estimates a 100.0% probability this vulnerability will be exploited in the wild within 30 days (100% percentile among all scored CVEs).
Is there exploit tooling available for CVE-2021-1498?
Yes - a public Nuclei template referencing CVE-2021-1498 exist in public repositories we checked.
What type of vulnerability is CVE-2021-1498?
CVE-2021-1498 is classified under CWE-78, CWE-77.
Cross-checked against
Impactr finds and proves whether CVE-2021-1498 — or flaws like it — are actually reachable in your own web apps and APIs, with a reproducible exploit as evidence.