CVE-2024-20353CiscoFirewall and VPNApril 24, 2024

Cisco ASA and FTD Denial of Service Vulnerability

High 8.6Actively exploited

Description

Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) contain an infinite loop vulnerability that can lead to remote denial of service condition.

What to do

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

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Details

Vendor
Cisco
Product
Cisco ASA e FTD
CVE
CVE-2024-20353
Affected versions
Cisco Adaptive Security Appliance (ASA) Software 9.8: 49 versions, from 9.8.1 to 9.8.4.48
Cisco Adaptive Security Appliance (ASA) Software 9.12: 41 versions, from 9.12.1 to 9.12.4.65
Cisco Adaptive Security Appliance (ASA) Software 9.14: 28 versions, from 9.14.1 to 9.14.4.23
Cisco Adaptive Security Appliance (ASA) Software 9.15: 8 versions, from 9.15.1 to 9.15.1.21
Cisco Adaptive Security Appliance (ASA) Software 9.16: 25 versions, from 9.16.1 to 9.16.4.55
Cisco Adaptive Security Appliance (ASA) Software 9.17: 10 versions, from 9.17.1 to 9.17.1.33
Cisco Adaptive Security Appliance (ASA) Software 9.18: 15 versions, from 9.18.1 to 9.18.4.8
Cisco Adaptive Security Appliance (ASA) Software 9.19: 8 versions, from 9.19.1 to 9.19.1.27
Cisco Adaptive Security Appliance (ASA) Software 9.20: 9.20.1; 9.20.1.5; 9.20.2
Cisco Firepower Threat Defense Software 6.2: 19 versions, from 6.2.3 to 6.2.3.18
Cisco Firepower Threat Defense Software 6.6: 10 versions, from 6.6.0 to 6.6.7.1
Cisco Firepower Threat Defense Software 6.4: 18 versions, from 6.4.0 to 6.4.0.17
Cisco Firepower Threat Defense Software 6.7: 4 versions, from 6.7.0 to 6.7.0.3
Cisco Firepower Threat Defense Software 7.0: 11 versions, from 7.0.0 to 7.0.6.1
Cisco Firepower Threat Defense Software 7.1: 4 versions, from 7.1.0 to 7.1.0.3
Cisco Firepower Threat Defense Software 7.2: 9 versions, from 7.2.0 to 7.2.5.1
Cisco Firepower Threat Defense Software 7.3: 7.3.0; 7.3.1; 7.3.1.1
Cisco Firepower Threat Defense Software 7.4: 7.4.0; 7.4.1 (from the advisory and NVD; check the exact builds in the official advisory)
CVSS score
8.6
Actively exploited
Yes, listed in the CISA Known Exploited Vulnerabilities catalog
CISA due date
May 1, 2024 (deadline for US federal agencies: a good benchmark for you too)
Source
CISA KEV – original advisory
Published
April 24, 2024

The description and the recommended action are quoted from the public advisory; severity, exploitation status and affected versions are compiled automatically from public sources and may contain errors. The vendor's original advisory prevails: check it before taking action. This information is provided without warranty and does not replace a professional assessment.

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