On 2024-04-24, CISA added CVE-2024-20359 (Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)) to its Known Exploited Vulnerabilities (KEV) catalog [2]. The vulnerability is listed in the catalog as "Cisco ASA and FTD Privilege Escalation Vulnerability" [2]. CISA requires remediation in accordance with the listed vendor mitigation guidance; see the original text in the body for specific requirements [2].
Backfill: this event became public on Apr 24, 2024 and we added it on Nov 10, 2026. It is not a new event.
CISA Adds Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) Vulnerability CVE-2024-20359 to Known Exploited Vulnerabilities Catalog
1 min read
- Disclosed
- Apr 24, 2024
- Published
- Nov 10, 2026
- Last updated
- Nov 8, 2026
- CVSS basis
- Our assessment
- 18.8%, higher than 97% of CVEs
- Exploitation and patch status
- ExploitedKEV
- Attack vector
- Vulnerability status
- Actor type
- Motivation
On this page
30-second summary
What happened
Who is affected
Industries mainly affected: Government, Cross-industry
What to do nowOur advice
CISA requires remediation in accordance with the listed vendor mitigation guidance; see the original text in the body for specific requirements [2].
Timeline
Technical details
CISA KEV Listing Record
CISA added CVE-2024-20359 (Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)) to the Known Exploited Vulnerabilities () catalog on 2024-04-24 [2].
Original Technical Description
Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) contain a privilege escalation vulnerability that can allow local privilege escalation from Administrator to root. [2]
Official Required Action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. [2]
Individual Vulnerability Record
The U.S. National Vulnerability Database (NVD) provides an independent vulnerability record and description for CVE-2024-20359 [1].
References
Official / primary3
- [1]
“A vulnerability in a legacy capability that allowed for the preloading of VPN clients and plug-ins and that has been available in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to execute arbitrary code ”
- [2]
This site aggregates public information and is not security consulting advice. Test remediation steps before applying.