Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2021-1497

98
FAUCET Score

CVE-2021-1497 is a critical command injection vulnerability in the web-based management interface of Cisco HyperFlex HX products, allowing unauthenticated, remote attackers to execute arbitrary commands. With a CVSS score of 9.8 (CRITICAL) and a FAUCET Risk Score of 100/100, this flaw presents a severe risk due to its network-based attack vector, low complexity, and potential for complete compromise of confidentiality, integrity, and availability. This vulnerability is actively exploited in the wild, with public Metasploit modules and Nuclei templates available, and has garnered significant community discussion and media coverage, indicating widespread awareness and potential for further exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.0\(2e\)CPE matchmatch criteria
cpe:2.3:o:cisco:hyperflex_hx_data_platform:*:*:*:*:*:*:*:*
>= 4.5, < 4.5\(2a\)CPE matchmatch criteria
cpe:2.3:o:cisco:hyperflex_hx_data_platform:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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 Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
99.93%
Probability of exploitation in next 30 days
EPSS Percentile
100.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Nov 3, 2021
Metasploit: Cisco HyperFlex HX Data Platform Command Execution · May 5, 2021
Nuclei: CVE-2021-1497 · Jul 6, 2021
This CVE's current EPSS score of 0.9993 is in the 100th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
packetstormsecurity.com / files/162976/Cisco-HyperFlex-HX-Data-Platform-Command-Execution.html
ExploitThird Party AdvisoryVDB Entry
tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-hyperflex-rce-TjjNrkpR
Vendor Advisory