CVE detail

CVE-2020-3204 — CVE-2020-3204

Published 2020-06-03 · Modified 2026-06-17 · Vendor cisco · Product ios · Source nvd
MEDIUM
severity
CVSS-derived band
6.7
CVSS v3
0–10 scale
0.0038
EPSS probability
exploitation probability, 30d
31.0%
EPSS percentile
percentile vs all CVEs
NOT LISTED
CISA KEV
known exploited catalog

Description

A vulnerability in the Tool Command Language (Tcl) interpreter of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, local attacker with privileged EXEC credentials to execute arbitrary code on the underlying operating system (OS) with root privileges. The vulnerability is due to insufficient input validation of data passed to the Tcl interpreter. An attacker could exploit this vulnerability by loading malicious Tcl code on an affected device. A successful exploit could allow the attacker to cause memory corruption or execute the code with root privileges on the underlying OS of the affected device.

Remediation

ProductVulnerable rangeFixed versionAdvisory
Cisco Cisco IOS 12.2(53)SE1not 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.