CVE detail

CVE-2021-1134 — CVE-2021-1134

Published 2021-06-29 · Modified 2026-06-17 · Vendor cisco · Product catalyst_center · Source nvd
HIGH
severity
CVSS-derived band
7.4
CVSS v3
0–10 scale
0.0077
EPSS probability
exploitation probability, 30d
52.0%
EPSS percentile
percentile vs all CVEs
NOT LISTED
CISA KEV
known exploited catalog

Description

A vulnerability in the Cisco Identity Services Engine (ISE) integration feature of the Cisco DNA Center Software could allow an unauthenticated, remote attacker to gain unauthorized access to sensitive data. The vulnerability is due to an incomplete validation of the X.509 certificate used when establishing a connection between DNA Center and an ISE server. An attacker could exploit this vulnerability by supplying a crafted certificate and could then intercept communications between the ISE and DNA Center. A successful exploit could allow the attacker to view and alter sensitive information that the ISE maintains about clients that are connected to the network.

Remediation

ProductVulnerable rangeFixed versionAdvisory
Cisco Cisco Digital Network Architecture Center (DNA Center)not specifiedadvisory ↗

References

cvedb.io · NVD · CISA KEV · FIRST EPSS · vendor advisories (CVE Program List v5). Informational only, no warranty — verify every remediation against the vendor advisory before acting on it. This product uses data from the NVD API but is not endorsed or certified by the NVD, CISA, FIRST.org or any vendor named. CVE® is a registered trademark of The MITRE Corporation.