CVE-2021-1497

Cisco HyperFlex HX Command Injection Vulnerabilities

At a glance

Severity: CRITICAL 9.8
Exploitation: Known exploited (CISA KEV) · added 2021-11-03
Exploited per ENISA since 2021-11-03
EPSS: EPSS 99.93 % · percentile 100 (2026-10-27)
State: PUBLISHED
Published: 2021-05-06
Updated: 2025-10-21
Assigner: cisco
NVD status: Analyzed

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.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	CRITICAL 9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	cisco
CVSS 3.1	CRITICAL 9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	NVD · psirt@cisco.com (Secondary)
CVSS 3.1	CRITICAL 9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	NVD · nvd@nist.gov (Primary)
CVSS 2.0	HIGH 10.0	AV:N/AC:L/Au:N/C:C/I:C/A:C	NVD · nvd@nist.gov (Primary)

Weaknesses (CWE)

CWE-78

European references

ENISA EUVD · EUVD-2021-6964
GCVE · GCVE-0-2021-1497

CERT-FR advisories

CERTFR-2021-AVI-350 — Multiples vulnérabilités dans les produits Cisco · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:o:cisco:hyperflex_hx_data_platform:*:*:*:*:*:*:*:* < 4.0\(2e\)
cpe:2.3:o:cisco:hyperflex_hx_data_platform:*:*:*:*:*:*:*:* ≥ 4.5 < 4.5\(2a\)

Affected products

Product	Versions
Cisco · Cisco HyperFlex HX Data Platform	affected n/a

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
CISA Known Exploited Vulnerabilities	CC0 1.0
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD