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HIGH · 8.6

CVE-2021-34792

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 deni...

Vulnerability Description

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.

CVSS Score

8.6

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
CiscoFirepower Threat Defense>= 6.4.0, < 6.4.0.13
CiscoAdaptive Security Appliance Software>= 9.8.0, < 9.8.4.40
CiscoAsa 5512-X Firmware009.014\(001.150\)
CiscoAsa 5512-X-
CiscoAsa 5505 Firmware009.014\(001.150\)
CiscoAsa 5505-
CiscoAsa 5515-X Firmware009.014\(001.150\)
CiscoAsa 5515-X-
CiscoAsa 5525-X Firmware009.014\(001.150\)
CiscoAsa 5525-X-
CiscoAsa 5545-X Firmware009.014\(001.150\)
CiscoAsa 5545-X-
CiscoAsa 5555-X Firmware009.014\(001.150\)
CiscoAsa 5555-X-
CiscoAsa 5580 Firmware009.014\(001.150\)
CiscoAsa 5580-
CiscoAsa 5585-X Firmware009.014\(001.150\)
CiscoAsa 5585-X-

Related Weaknesses (CWE)

CWE-401CWE-400

References

FAQ

What is CVE-2021-34792?

CVE-2021-34792 is a vulnerability with a CVSS score of 8.6 (HIGH). 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 deni...

How severe is CVE-2021-34792?

CVE-2021-34792 has been rated HIGH with a CVSS base score of 8.6/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-34792?

Check the references section above for vendor advisories and patch information. Affected products include: Cisco Firepower Threat Defense, Cisco Adaptive Security Appliance Software, Cisco Asa 5512-X Firmware, Cisco Asa 5512-X, Cisco Asa 5505 Firmware.