Is CVE-2021-1498 actively exploited?

Yes. CVE-2021-1498 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2021-1498 be exploited remotely?

The attack vector of CVE-2021-1498 has not been classified yet.

What is the CVSS score of CVE-2021-1498?

CVE-2021-1498 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2021-1498

HIGHCISA KEVIN THE WILD

CVE-2021-1498

Published: November 3, 2021

EPSS:94.21%probability of exploitation in 30 daysPercentile:99.9th

Official Description

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.

NVD Source

CISA KEV Advisory

Cisco HyperFlex HX Data Platform Command Injection Vulnerability

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.

Added to KEV: 2021-11-03Federal patch deadline: 2021-11-17

Required Action (CISA)

Apply updates per vendor instructions.

Risk Analysis

Cisco HyperFlex HX Installer Virtual Machine contains an insufficient input validation vulnerability that could allow an attacker to execute commands as the tomcat8 user. With an EPSS score of 0.94206 and confirmed exploitation in the wild, this is a critical vulnerability.

This vulnerability is actively exploited in the wild. The insufficient input validation could allow for remote command execution.

Recommended Action

Apply available patches and updates for Cisco HyperFlex HX Installer Virtual Machine to correct the input validation flaw. Ensure proper network segmentation and access controls are in place to limit exposure.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2021-1498 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2021-1498 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.