CVE DATABASE / CVE-2021-1498
CVE-2021-1498
Cisco HyperFlex HX Data Platform Command Injection Vulnerability
CVSS 9.8 · CRITICAL
⚠ CISA KEV — ACTIVELY EXPLOITED
On the CISA KEV catalog
Confirmed exploited in the wild. Added 2021-11-03.
Federal remediation due 2021-11-17.
Required action: Apply updates per vendor instructions.
Summary
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.
CVSS 3.1 breakdown
| Base score | 9.8 (CRITICAL) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| Attack vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity | HIGH |
| Availability | HIGH |
Weakness type (CWE)
Affected products
Cisco hyperflex hx data platformCisco hyperflex hx220c af m5Cisco hyperflex hx220c all nvme m5Cisco hyperflex hx220c edge m5Cisco hyperflex hx220c m5Cisco hyperflex hx240cCisco hyperflex hx240c af m5Cisco hyperflex hx240c m5
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References
- http://packetstormsecurity.com/files/162976/Cisco-HyperFlex-HX-Data-Platform-Command-Execution.html
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hyperflex-rce-TjjNrkpR
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-1498
Data: NIST NVD + CISA KEV. NVD last modified 2025-10-28. Always verify against the vendor advisory before acting.