CVE-2024-20339
Last modified
CVE-2024-20339 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability in the TLS processing feature of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to an issue that occurs when TLS traffic is processed. An attacker could exploit this vulnerability by sending certain TLS traffic over IPv4 through an affected device. EPSS estimates a 0.71% chance of exploitation in the next 30 days.
Description
A vulnerability in the TLS processing feature of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to an issue that occurs when TLS traffic is processed. An attacker could exploit this vulnerability by sending certain TLS traffic over IPv4 through an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition and impacting traffic to and through the affected device.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Secure Firewall Threat Defense | 6.2.3 |
| Cisco | Secure Firewall Threat Defense | 6.2.3.1 |
| Cisco | Secure Firewall Threat Defense | 6.2.3.2 |
| Cisco | Secure Firewall Threat Defense | 6.2.3.3 |
| Cisco | Secure Firewall Threat Defense | 6.2.3.4 |
| Cisco | Secure Firewall Threat Defense | 6.2.3.5 |
| Cisco | Secure Firewall Threat Defense | 6.2.3.6 |
| Cisco | Secure Firewall Threat Defense | 6.2.3.7 |
| Cisco | Secure Firewall Threat Defense | 6.2.3.8 |
| Cisco | Secure Firewall Threat Defense | 6.2.3.9 |
| Cisco | Secure Firewall Threat Defense | 6.2.3.10 |
| Cisco | Secure Firewall Threat Defense | 6.2.3.11 |
| Cisco | Secure Firewall Threat Defense | 6.2.3.12 |
| Cisco | Secure Firewall Threat Defense | 6.2.3.13 |
| Cisco | Secure Firewall Threat Defense | 6.2.3.14 |
| Cisco | Secure Firewall Threat Defense | 6.2.3.15 |
| Cisco | Secure Firewall Threat Defense | 6.2.3.16 |
| Cisco | Secure Firewall Threat Defense | 6.2.3.17 |
| Cisco | Secure Firewall Threat Defense | 6.2.3.18 |
| Cisco | Secure Firewall Threat Defense | 6.4.0 |
| Cisco | Secure Firewall Threat Defense | 6.4.0.1 |
| Cisco | Secure Firewall Threat Defense | 6.4.0.2 |
| Cisco | Secure Firewall Threat Defense | 6.4.0.3 |
| Cisco | Secure Firewall Threat Defense | 6.4.0.4 |
| Cisco | Secure Firewall Threat Defense | 6.4.0.5 |
| Cisco | Secure Firewall Threat Defense | 6.4.0.6 |
| Cisco | Secure Firewall Threat Defense | 6.4.0.7 |
| Cisco | Secure Firewall Threat Defense | 6.4.0.8 |
| Cisco | Secure Firewall Threat Defense | 6.4.0.9 |
| Cisco | Secure Firewall Threat Defense | 6.4.0.10 |
| Cisco | Secure Firewall Threat Defense | 6.4.0.11 |
| Cisco | Secure Firewall Threat Defense | 6.4.0.12 |
| Cisco | Secure Firewall Threat Defense | 6.4.0.13 |
| Cisco | Secure Firewall Threat Defense | 6.4.0.14 |
| Cisco | Secure Firewall Threat Defense | 6.4.0.15 |
| Cisco | Secure Firewall Threat Defense | 6.4.0.16 |
| Cisco | Secure Firewall Threat Defense | 6.4.0.17 |
| Cisco | Secure Firewall Threat Defense | 6.6.0 |
| Cisco | Secure Firewall Threat Defense | 6.6.0.1 |
| Cisco | Secure Firewall Threat Defense | 6.6.1 |
| Cisco | Secure Firewall Threat Defense | 6.6.3 |
| Cisco | Secure Firewall Threat Defense | 6.6.4 |
| Cisco | Secure Firewall Threat Defense | 6.6.5 |
| Cisco | Secure Firewall Threat Defense | 6.6.5.1 |
| Cisco | Secure Firewall Threat Defense | 6.6.5.2 |
| Cisco | Secure Firewall Threat Defense | 6.6.7 |
| Cisco | Secure Firewall Threat Defense | 6.6.7.1 |
| Cisco | Secure Firewall Threat Defense | 6.6.7.2 |
| Cisco | Secure Firewall Threat Defense | 6.7.0 |
| Cisco | Secure Firewall Threat Defense | 6.7.0.1 |
Showing 50 of 80 affected configurations. See NVD for the full list.
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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