Is CVE-2021-34748 being actively exploited?

CVE-2021-34748 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2021-34748?

CVE-2021-34748 has a CVSS 3.1 base score of 8.8 (HIGH).

CVE-2021-34748

HIGH · CVSS 8.8EPSS 2.7%EU EUVD

A vulnerability in the web-based management interface of Cisco Intersight Virtual Appliance could allow an authenticated, remote attacker to perform a command injection attack on an affected device. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by using the web-based management interface to execute a command using crafted input. A successful exploit could allow the attacker to execute arbitrary commands using root-level privileges on an affected device.

Key facts

CVSS score: 8.8 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-77
EPSS score: 2.7% (86th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2021-21398)
Published: October 6, 2021
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2021-21398 in the EU Vulnerability Database. Last updated in EUVD on November 7, 2024.

View on the EU Vulnerability Database

Affected products

cisco / intersight virtual appliance

Certified products that may be affected

2 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Cisco Intersight Virtual Appliance 1.0.9 with IMM Fabric 4.3 UCS X-Series Servers and UCS C-Series Servers - Cisco Systems, Inc. - Common Criteria NSCIB-CC-2400020-01-CR - active
Cisco Systems, Inc. Intersight Virtual Appliance 1.0.9 with IMM Fabric 4.3 UCS X-Series Servers and UCS C-Series Servers - Cisco Systems, Inc. - Common Criteria NSCIB-CC-2400020-01-CR - active

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsi2-command-inject-CGyC8y2R(Vendor Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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