CVE-2022-20746
Cisco Firepower Threat Defense Software TCP Proxy Denial of Service Vulnerability
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
A vulnerability in the TCP proxy functionality of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to trigger a denial of service (DoS) condition. This vulnerability is due to improper handling of TCP flows. An attacker could exploit this vulnerability by sending a crafted stream of TCP traffic through an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
Una vulnerabilidad en la funcionalidad del proxy TCP del software Cisco Firepower Threat Defense (FTD) podría permitir a un atacante remoto no autenticado desencadenar una condición de denegación de servicio (DoS). Esta vulnerabilidad es debido a un manejo inapropiado de los flujos TCP. Un atacante podría explotar esta vulnerabilidad mediante el envío de un flujo diseñado de tráfico TCP a través de un dispositivo afectado. Una explotación con éxito podría permitir al atacante causar la recarga del dispositivo, resultando en una condición de DoS
CVSS Scores
SSVC
- Decision:Attend
Timeline
- 2021-11-02 CVE Reserved
- 2022-05-03 CVE Published
- 2023-11-23 EPSS Updated
- 2024-11-06 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-476: NULL Pointer Dereference
CAPEC
References (1)
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Cisco Search vendor "Cisco" | Firepower Threat Defense Search vendor "Cisco" for product "Firepower Threat Defense" | < 6.4.0.15 Search vendor "Cisco" for product "Firepower Threat Defense" and version " < 6.4.0.15" | - |
Affected
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| Cisco Search vendor "Cisco" | Firepower Threat Defense Search vendor "Cisco" for product "Firepower Threat Defense" | >= 6.5.0 < 6.6.5.2 Search vendor "Cisco" for product "Firepower Threat Defense" and version " >= 6.5.0 < 6.6.5.2" | - |
Affected
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| Cisco Search vendor "Cisco" | Firepower Threat Defense Search vendor "Cisco" for product "Firepower Threat Defense" | >= 7.0.0 < 7.0.2 Search vendor "Cisco" for product "Firepower Threat Defense" and version " >= 7.0.0 < 7.0.2" | - |
Affected
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| Cisco Search vendor "Cisco" | Firepower Threat Defense Search vendor "Cisco" for product "Firepower Threat Defense" | 7.1.0 Search vendor "Cisco" for product "Firepower Threat Defense" and version "7.1.0" | - |
Affected
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