CVE-2022-20718Public exploitNetwork attack vector

Root code execution via unsanitized activation parameters

Published Apr 15, 2022 · Updated Sep 17, 2024

OS command injection in Cisco IOx on Cisco IOS allows remote authenticated users to execute code as root through the IOx API. The Cisco Application Framework appends the package.yaml network interface name to a command array, joins it into a string, and invokes a shell without validation. Exploitation requires high-privilege API credentials, IOx enabled with an application configured, and deployment and activation of a crafted application package.

CVSS severity5.5
Medium
EPSS probability2.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Cisco IOx on Cisco IOS allows remote authenticated users to execute code as root through the IOx API. The Cisco Application Framework appends the package.yaml network interface name to a command array, joins it into a string, and invokes a shell without validation. Exploitation requires high-privilege API credentials, IOx enabled with an application configured, and deployment and activation of a crafted application package.

The record

CVE
CVE-2022-20718
Published
Apr 15, 2022
Updated
Sep 17, 2024
Vendor
ClamAV
Product
Cisco IOS
Classifications
CWE-22, CWE-78, T1059.004
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 15, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 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 vectornetwork
Required privilegesadmin

What is affected?

ClamAV · Cisco IOSversion=n/a

Published CVSS scores

9.0NIST NVDAV:N/AC:L/Au:S/C:C/I:C/A:C
5.5Orange CERT-CCCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N
5.5Cisco Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N
7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

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

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Command and Scripting Interpreter: Unix Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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