CVE-2020-3210

Root command execution via unvalidated VDS CLI arguments

Published Jun 3, 2020 · Updated Nov 15, 2024

Command injection in Cisco IOS on 809 and 829 Industrial ISRs and CGR1000 devices allows local users to execute VDS root shell commands. The affected CLI parsers pass insufficiently validated arguments from specific VDS-related commands into the VDS Linux shell. Access requires valid privilege level 15 credentials; successful exploitation runs commands as root and can compromise the IOS, Guest OS, and VDS virtual machines.

CVSS severity6.7
Medium
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Cisco IOS on 809 and 829 Industrial ISRs and CGR1000 devices allows local users to execute VDS root shell commands. The affected CLI parsers pass insufficiently validated arguments from specific VDS-related commands into the VDS Linux shell. Access requires valid privilege level 15 credentials; successful exploitation runs commands as root and can compromise the IOS, Guest OS, and VDS virtual machines.

The record

CVE
CVE-2020-3210
Published
Jun 3, 2020
Updated
Nov 15, 2024
Vendor
ClamAV
Product
Cisco IOS
Classifications
CWE-77, CWE-78, T1059.004
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jun 3, 2020CVE publishedPublication date reported by the CVE source.
  2. Nov 15, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

ClamAV · Cisco IOSversion=n/a

Published CVSS scores

7.2NIST NVDAV:L/AC:L/Au:N/C:C/I:C/A:C
6.7NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.7CiscoCVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:X

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Unix Shell

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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