CVE-2022-20829Public exploitNetwork attack vector

Client-side code execution via unsigned ASDM images

Published Jun 24, 2022 · Updated Nov 1, 2024

Improper ASDM image validation in Cisco ASA Software allows remote authenticated administrators to execute code on an ASDM user's machine. ASA accepts crafted ASDM packages whose contents are not authenticated by a Cisco digital signature, then distributes their components when ASDM connects. Exploitation requires device-administrator privileges, enabled HTTPS management, vulnerable ASA, ASDM, and launcher releases, and a user who manages that device through ASDM.

CVSS severity9.1
Critical
EPSS probability3.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper ASDM image validation in Cisco ASA Software allows remote authenticated administrators to execute code on an ASDM user's machine. ASA accepts crafted ASDM packages whose contents are not authenticated by a Cisco digital signature, then distributes their components when ASDM connects. Exploitation requires device-administrator privileges, enabled HTTPS management, vulnerable ASA, ASDM, and launcher releases, and a user who manages that device through ASDM.

The record

CVE
CVE-2022-20829
Published
Jun 24, 2022
Updated
Nov 1, 2024
Vendor
ClamAV
Product
Cisco Adaptive Security Appliance (ASA) Software
Classifications
CWE-345, T1204.002
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jun 24, 2022CVE publishedPublication date reported by the CVE source.
  2. Nov 1, 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 Adaptive Security Appliance (ASA) Softwareversion=n/a

Published CVSS scores

7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
9.1Cisco Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
9.0NIST NVDAV:N/AC:L/Au:S/C:C/I:C/A:C

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)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-345Insufficient Verification of Data Authenticity
T1204.002Malicious File

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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