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CVE-2022-20947

A vulnerability in dynamic access policies (DAP) functionality of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat…

High8.6EPSS 1.0%
Published
Updated
Reserved
Assigned by
cisco

Description

A vulnerability in dynamic access policies (DAP) functionality of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to improper processing of HostScan data received from the Posture (HostScan) module. An attacker could exploit this vulnerability by sending crafted HostScan data to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ftd-dap-dos-GhYZBxDU ["https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ftd-dap-dos-GhYZBxDU"] This advisory is part of the November 2022 release of the Cisco ASA, FTD, and FMC Security Advisory Bundled publication.

Timeline

  1. ID reserved

    By cisco

  2. · 12 months later

    Published

  3. · 21 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2022-20947, by who scored it
Scored byCVSSScoreVector
ciscoCNA (assigner)3.1High8.6CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
NVDNVD · Modified3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
1.0% · top 36% of all CVEs (7 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.6.

Weakness

Affected products

  • Cisco · Cisco Adaptive Security Appliance (ASA) Software

    • affected 9.12.1.3
    • affected 9.17.1

  • Cisco · Cisco Firepower Threat Defense Software

    • affected 6.2.3
    • affected 6.2.3.1
    • affected 6.2.3.2
    • affected 6.2.3.3
    • affected 6.2.3.4
    • affected 6.2.3.5
    • affected 6.2.3.6
    • affected 6.2.3.7
    • affected 6.2.3.8
    • affected 6.2.3.10
    • affected 6.2.3.11
    • affected 6.2.3.9
    • affected 6.2.3.12
    • affected 6.2.3.13
    • affected 6.2.3.14
    • affected 6.2.3.15
    • affected 6.2.3.16
    • affected 6.2.3.17
    • affected 6.2.3.18
    • affected 6.6.0
    • affected 6.6.0.1
    • affected 6.6.1
    • affected 6.6.3
    • affected 6.6.4
    • affected 6.6.5
    • affected 6.6.5.1
    • affected 6.4.0
    • affected 6.4.0.1
    • affected 6.4.0.3
    • affected 6.4.0.2
    • affected 6.4.0.4
    • affected 6.4.0.5
    • affected 6.4.0.6
    • affected 6.4.0.7
    • affected 6.4.0.8
    • affected 6.4.0.9
    • affected 6.4.0.10
    • affected 6.4.0.11
    • affected 6.4.0.12
    • affected 6.4.0.13
    • and 12 more

What to do

Exploitation: The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .