// For flags

CVE-2021-34792

Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Resource Exhaustion Denial of Service Vulnerability

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

A vulnerability in the memory management of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper resource management when connection rates are high. An attacker could exploit this vulnerability by opening a significant number of connections on 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 administración de la memoria del software Cisco Adaptive Security Appliance (ASA) y del software Firepower Threat Defense (FTD) podría permitir a un atacante remoto no autenticado causar una condición de denegación de servicio (DoS) en un dispositivo afectado. Esta vulnerabilidad es debido a una administración inapropiada de los recursos cuando las tasas de conexión son altas. Un atacante podría explotar esta vulnerabilidad al abrir un número significativo de conexiones en un dispositivo afectado. Una explotación con éxito podría permitir al atacante causar una recarga del dispositivo, resultando en una condición de DoS

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2021-06-15 CVE Reserved
  • 2021-10-27 CVE Published
  • 2024-07-12 EPSS Updated
  • 2024-11-07 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-400: Uncontrolled Resource Consumption
  • CWE-401: Missing Release of Memory after Effective Lifetime
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Cisco
Search vendor "Cisco"
Asa 5512-x Firmware
Search vendor "Cisco" for product "Asa 5512-x Firmware"
009.014\(001.150\)
Search vendor "Cisco" for product "Asa 5512-x Firmware" and version "009.014\(001.150\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5512-x
Search vendor "Cisco" for product "Asa 5512-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5512-x Firmware
Search vendor "Cisco" for product "Asa 5512-x Firmware"
099.017\(001.211\)
Search vendor "Cisco" for product "Asa 5512-x Firmware" and version "099.017\(001.211\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5512-x
Search vendor "Cisco" for product "Asa 5512-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5512-x Firmware
Search vendor "Cisco" for product "Asa 5512-x Firmware"
099.017\(001.220\)
Search vendor "Cisco" for product "Asa 5512-x Firmware" and version "099.017\(001.220\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5512-x
Search vendor "Cisco" for product "Asa 5512-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5512-x Firmware
Search vendor "Cisco" for product "Asa 5512-x Firmware"
099.017\(015.050\)
Search vendor "Cisco" for product "Asa 5512-x Firmware" and version "099.017\(015.050\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5512-x
Search vendor "Cisco" for product "Asa 5512-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5505 Firmware
Search vendor "Cisco" for product "Asa 5505 Firmware"
009.014\(001.150\)
Search vendor "Cisco" for product "Asa 5505 Firmware" and version "009.014\(001.150\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5505
Search vendor "Cisco" for product "Asa 5505"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5505 Firmware
Search vendor "Cisco" for product "Asa 5505 Firmware"
099.017\(001.211\)
Search vendor "Cisco" for product "Asa 5505 Firmware" and version "099.017\(001.211\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5505
Search vendor "Cisco" for product "Asa 5505"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5505 Firmware
Search vendor "Cisco" for product "Asa 5505 Firmware"
099.017\(001.220\)
Search vendor "Cisco" for product "Asa 5505 Firmware" and version "099.017\(001.220\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5505
Search vendor "Cisco" for product "Asa 5505"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5505 Firmware
Search vendor "Cisco" for product "Asa 5505 Firmware"
099.017\(015.050\)
Search vendor "Cisco" for product "Asa 5505 Firmware" and version "099.017\(015.050\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5505
Search vendor "Cisco" for product "Asa 5505"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5515-x Firmware
Search vendor "Cisco" for product "Asa 5515-x Firmware"
009.014\(001.150\)
Search vendor "Cisco" for product "Asa 5515-x Firmware" and version "009.014\(001.150\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5515-x
Search vendor "Cisco" for product "Asa 5515-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5515-x Firmware
Search vendor "Cisco" for product "Asa 5515-x Firmware"
099.017\(001.211\)
Search vendor "Cisco" for product "Asa 5515-x Firmware" and version "099.017\(001.211\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5515-x
Search vendor "Cisco" for product "Asa 5515-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5515-x Firmware
Search vendor "Cisco" for product "Asa 5515-x Firmware"
099.017\(001.220\)
Search vendor "Cisco" for product "Asa 5515-x Firmware" and version "099.017\(001.220\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5515-x
Search vendor "Cisco" for product "Asa 5515-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5515-x Firmware
Search vendor "Cisco" for product "Asa 5515-x Firmware"
099.017\(015.050\)
Search vendor "Cisco" for product "Asa 5515-x Firmware" and version "099.017\(015.050\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5515-x
Search vendor "Cisco" for product "Asa 5515-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5525-x Firmware
Search vendor "Cisco" for product "Asa 5525-x Firmware"
009.014\(001.150\)
Search vendor "Cisco" for product "Asa 5525-x Firmware" and version "009.014\(001.150\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5525-x
Search vendor "Cisco" for product "Asa 5525-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5525-x Firmware
Search vendor "Cisco" for product "Asa 5525-x Firmware"
099.017\(001.211\)
Search vendor "Cisco" for product "Asa 5525-x Firmware" and version "099.017\(001.211\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5525-x
Search vendor "Cisco" for product "Asa 5525-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5525-x Firmware
Search vendor "Cisco" for product "Asa 5525-x Firmware"
099.017\(001.220\)
Search vendor "Cisco" for product "Asa 5525-x Firmware" and version "099.017\(001.220\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5525-x
Search vendor "Cisco" for product "Asa 5525-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5525-x Firmware
Search vendor "Cisco" for product "Asa 5525-x Firmware"
099.017\(015.050\)
Search vendor "Cisco" for product "Asa 5525-x Firmware" and version "099.017\(015.050\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5525-x
Search vendor "Cisco" for product "Asa 5525-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5545-x Firmware
Search vendor "Cisco" for product "Asa 5545-x Firmware"
009.014\(001.150\)
Search vendor "Cisco" for product "Asa 5545-x Firmware" and version "009.014\(001.150\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5545-x
Search vendor "Cisco" for product "Asa 5545-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5545-x Firmware
Search vendor "Cisco" for product "Asa 5545-x Firmware"
099.017\(001.211\)
Search vendor "Cisco" for product "Asa 5545-x Firmware" and version "099.017\(001.211\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5545-x
Search vendor "Cisco" for product "Asa 5545-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5545-x Firmware
Search vendor "Cisco" for product "Asa 5545-x Firmware"
099.017\(001.220\)
Search vendor "Cisco" for product "Asa 5545-x Firmware" and version "099.017\(001.220\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5545-x
Search vendor "Cisco" for product "Asa 5545-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5545-x Firmware
Search vendor "Cisco" for product "Asa 5545-x Firmware"
099.017\(015.050\)
Search vendor "Cisco" for product "Asa 5545-x Firmware" and version "099.017\(015.050\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5545-x
Search vendor "Cisco" for product "Asa 5545-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5555-x Firmware
Search vendor "Cisco" for product "Asa 5555-x Firmware"
009.014\(001.150\)
Search vendor "Cisco" for product "Asa 5555-x Firmware" and version "009.014\(001.150\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5555-x
Search vendor "Cisco" for product "Asa 5555-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5555-x Firmware
Search vendor "Cisco" for product "Asa 5555-x Firmware"
099.017\(001.211\)
Search vendor "Cisco" for product "Asa 5555-x Firmware" and version "099.017\(001.211\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5555-x
Search vendor "Cisco" for product "Asa 5555-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5555-x Firmware
Search vendor "Cisco" for product "Asa 5555-x Firmware"
099.017\(001.220\)
Search vendor "Cisco" for product "Asa 5555-x Firmware" and version "099.017\(001.220\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5555-x
Search vendor "Cisco" for product "Asa 5555-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5555-x Firmware
Search vendor "Cisco" for product "Asa 5555-x Firmware"
099.017\(015.050\)
Search vendor "Cisco" for product "Asa 5555-x Firmware" and version "099.017\(015.050\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5555-x
Search vendor "Cisco" for product "Asa 5555-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5580 Firmware
Search vendor "Cisco" for product "Asa 5580 Firmware"
009.014\(001.150\)
Search vendor "Cisco" for product "Asa 5580 Firmware" and version "009.014\(001.150\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5580
Search vendor "Cisco" for product "Asa 5580"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5580 Firmware
Search vendor "Cisco" for product "Asa 5580 Firmware"
099.017\(001.211\)
Search vendor "Cisco" for product "Asa 5580 Firmware" and version "099.017\(001.211\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5580
Search vendor "Cisco" for product "Asa 5580"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5580 Firmware
Search vendor "Cisco" for product "Asa 5580 Firmware"
099.017\(001.220\)
Search vendor "Cisco" for product "Asa 5580 Firmware" and version "099.017\(001.220\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5580
Search vendor "Cisco" for product "Asa 5580"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5580 Firmware
Search vendor "Cisco" for product "Asa 5580 Firmware"
099.017\(015.050\)
Search vendor "Cisco" for product "Asa 5580 Firmware" and version "099.017\(015.050\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5580
Search vendor "Cisco" for product "Asa 5580"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5585-x Firmware
Search vendor "Cisco" for product "Asa 5585-x Firmware"
009.014\(001.150\)
Search vendor "Cisco" for product "Asa 5585-x Firmware" and version "009.014\(001.150\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5585-x
Search vendor "Cisco" for product "Asa 5585-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5585-x Firmware
Search vendor "Cisco" for product "Asa 5585-x Firmware"
099.017\(001.211\)
Search vendor "Cisco" for product "Asa 5585-x Firmware" and version "099.017\(001.211\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5585-x
Search vendor "Cisco" for product "Asa 5585-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5585-x Firmware
Search vendor "Cisco" for product "Asa 5585-x Firmware"
099.017\(001.220\)
Search vendor "Cisco" for product "Asa 5585-x Firmware" and version "099.017\(001.220\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5585-x
Search vendor "Cisco" for product "Asa 5585-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5585-x Firmware
Search vendor "Cisco" for product "Asa 5585-x Firmware"
099.017\(015.050\)
Search vendor "Cisco" for product "Asa 5585-x Firmware" and version "099.017\(015.050\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5585-x
Search vendor "Cisco" for product "Asa 5585-x"
--
Safe
Cisco
Search vendor "Cisco"
Firepower Threat Defense
Search vendor "Cisco" for product "Firepower Threat Defense"
>= 6.4.0 < 6.4.0.13
Search vendor "Cisco" for product "Firepower Threat Defense" and version " >= 6.4.0 < 6.4.0.13"
-
Affected
Cisco
Search vendor "Cisco"
Firepower Threat Defense
Search vendor "Cisco" for product "Firepower Threat Defense"
>= 6.6.0 < 6.6.5
Search vendor "Cisco" for product "Firepower Threat Defense" and version " >= 6.6.0 < 6.6.5"
-
Affected
Cisco
Search vendor "Cisco"
Firepower Threat Defense
Search vendor "Cisco" for product "Firepower Threat Defense"
>= 6.7.0 < 6.7.0.3
Search vendor "Cisco" for product "Firepower Threat Defense" and version " >= 6.7.0 < 6.7.0.3"
-
Affected
Cisco
Search vendor "Cisco"
Firepower Threat Defense
Search vendor "Cisco" for product "Firepower Threat Defense"
>= 7.0.0 < 7.0.1
Search vendor "Cisco" for product "Firepower Threat Defense" and version " >= 7.0.0 < 7.0.1"
-
Affected
Cisco
Search vendor "Cisco"
Adaptive Security Appliance Software
Search vendor "Cisco" for product "Adaptive Security Appliance Software"
>= 9.8.0 < 9.8.4.40
Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.8.0 < 9.8.4.40"
-
Affected
Cisco
Search vendor "Cisco"
Adaptive Security Appliance Software
Search vendor "Cisco" for product "Adaptive Security Appliance Software"
>= 9.12.0 < 9.12.4.29
Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.12.0 < 9.12.4.29"
-
Affected
Cisco
Search vendor "Cisco"
Adaptive Security Appliance Software
Search vendor "Cisco" for product "Adaptive Security Appliance Software"
>= 9.14.0 < 9.14.3.9
Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.14.0 < 9.14.3.9"
-
Affected
Cisco
Search vendor "Cisco"
Adaptive Security Appliance Software
Search vendor "Cisco" for product "Adaptive Security Appliance Software"
>= 9.15.0 < 9.15.1.17
Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.15.0 < 9.15.1.17"
-
Affected
Cisco
Search vendor "Cisco"
Adaptive Security Appliance Software
Search vendor "Cisco" for product "Adaptive Security Appliance Software"
>= 9.16.0 < 9.16.2.3
Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.16.0 < 9.16.2.3"
-
Affected