CVE-2022-20719Public exploitNetwork attack vector

Root code execution via unsanitized package parameters

Published Apr 15, 2022 · Updated Sep 17, 2024

Parameter injection in the IOx hosting environment in Cisco IOS allows remote authenticated users to execute code as root through the IOx API. The API incompletely sanitizes parameters in an IOx package descriptor when an application is built and deployed, allowing crafted values to reach host-side execution. Valid high-privilege credentials, enabled IOx hosting, and permission to build and deploy an application are required; successful exploitation grants root execution on the device.

CVSS severity5.5
Medium
EPSS probability2.70%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Parameter injection in the IOx hosting environment in Cisco IOS allows remote authenticated users to execute code as root through the IOx API. The API incompletely sanitizes parameters in an IOx package descriptor when an application is built and deployed, allowing crafted values to reach host-side execution. Valid high-privilege credentials, enabled IOx hosting, and permission to build and deploy an application are required; successful exploitation grants root execution on the device.

The record

CVE
CVE-2022-20719
Published
Apr 15, 2022
Updated
Sep 17, 2024
Vendor
ClamAV
Product
Cisco IOS
Classifications
CWE-22, T1068
Attack vector
network
Privileges
authenticated

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 privilegesauthenticated

What is affected?

ClamAV · Cisco IOSversion=n/a

Published CVSS scores

5.5Cisco Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1068Exploitation for Privilege Escalation

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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