8.6

CVE-2021-40117

A vulnerability in SSL/TLS message handler for Cisco Adaptive Security Appliance (ASA) Software and Cisco 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 exists because incoming SSL/TLS packets are not properly processed. An attacker could exploit this vulnerability by sending a crafted SSL/TLS packet to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.

Data is provided by the National Vulnerability Database (NVD)
Cisco ≫ Adaptive Security Appliance Version < 9.8.4.40
Cisco ≫ Firepower Threat Defense Version < 6.2.3.17
Cisco ≫ Firepower Threat Defense Version >= 6.3.0 < 6.4.0.13
Cisco ≫ Firepower Threat Defense Version >= 6.5.0 < 6.6.5
Cisco ≫ Firepower Threat Defense Version >= 6.7.0 < 6.7.0.3
Cisco ≫ Firepower Threat Defense Version >= 7.0.0 < 7.0.1
Cisco ≫ Adaptive Security Appliance Software Version >= 9.9.0 < 9.12.4.26
Cisco ≫ Adaptive Security Appliance Software Version >= 9.13.0 < 9.14.3.9
Cisco ≫ Adaptive Security Appliance Software Version >= 9.15.0 < 9.15.1.17
Cisco ≫ Adaptive Security Appliance Software Version >= 9.16.0 < 9.16.2.3
Cisco ≫ Asa 5512-x Firmware Version009.009(002.085)
   Cisco ≫ Asa 5512-x Version-
Cisco ≫ Asa 5512-x Firmware Version009.014(002.106)
   Cisco ≫ Asa 5512-x Version-
Cisco ≫ Asa 5505 Firmware Version009.009(002.085)
   Cisco ≫ Asa 5505 Version-
Cisco ≫ Asa 5505 Firmware Version009.014(002.106)
   Cisco ≫ Asa 5505 Version-
Cisco ≫ Asa 5515-x Firmware Version009.009(002.085)
   Cisco ≫ Asa 5515-x Version-
Cisco ≫ Asa 5515-x Firmware Version009.014(002.106)
   Cisco ≫ Asa 5515-x Version-
Cisco ≫ Asa 5525-x Firmware Version009.009(002.085)
   Cisco ≫ Asa 5525-x Version-
Cisco ≫ Asa 5525-x Firmware Version009.014(002.106)
   Cisco ≫ Asa 5525-x Version-
Cisco ≫ Asa 5545-x Firmware Version009.009(002.085)
   Cisco ≫ Asa 5545-x Version-
Cisco ≫ Asa 5545-x Firmware Version009.014(002.106)
   Cisco ≫ Asa 5545-x Version-
Cisco ≫ Asa 5555-x Firmware Version009.009(002.085)
   Cisco ≫ Asa 5555-x Version-
Cisco ≫ Asa 5555-x Firmware Version009.014(002.106)
   Cisco ≫ Asa 5555-x Version-
Cisco ≫ Asa 5580 Firmware Version009.009(002.085)
   Cisco ≫ Asa 5580 Version-
Cisco ≫ Asa 5580 Firmware Version009.014(002.106)
   Cisco ≫ Asa 5580 Version-
Cisco ≫ Asa 5585-x Firmware Version009.009(002.085)
   Cisco ≫ Asa 5585-x Version-
Cisco ≫ Asa 5585-x Firmware Version009.014(002.106)
   Cisco ≫ Asa 5585-x Version-
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.84% 0.725
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvd@nist.gov 7.8 10 6.9
AV:N/AC:L/Au:N/C:N/I:N/A:C
psirt@cisco.com 8.6 3.9 4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

CWE-400 Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.