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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
8.6 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
ciscoCNA
8.6 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVEADP
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CISA-ADPADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 73%
VendorProductVersion
ciscoadaptive_security_appliance
𝑥
< 9.8.4.40
ciscofirepower_threat_defense
𝑥
< 6.2.3.17
ciscofirepower_threat_defense
6.3.0 ≤
𝑥
< 6.4.0.13
ciscofirepower_threat_defense
6.5.0 ≤
𝑥
< 6.6.5
ciscofirepower_threat_defense
6.7.0 ≤
𝑥
< 6.7.0.3
ciscofirepower_threat_defense
7.0.0 ≤
𝑥
< 7.0.1
ciscoadaptive_security_appliance_software
9.9.0 ≤
𝑥
< 9.12.4.26
ciscoadaptive_security_appliance_software
9.13.0 ≤
𝑥
< 9.14.3.9
ciscoadaptive_security_appliance_software
9.15.0 ≤
𝑥
< 9.15.1.17
ciscoadaptive_security_appliance_software
9.16.0 ≤
𝑥
< 9.16.2.3
ciscoasa_5512-x_firmware
009.009\(002.085\)
ciscoasa_5512-x_firmware
009.014\(002.106\)
ciscoasa_5505_firmware
009.009\(002.085\)
ciscoasa_5505_firmware
009.014\(002.106\)
ciscoasa_5515-x_firmware
009.009\(002.085\)
ciscoasa_5515-x_firmware
009.014\(002.106\)
ciscoasa_5525-x_firmware
009.009\(002.085\)
ciscoasa_5525-x_firmware
009.014\(002.106\)
ciscoasa_5545-x_firmware
009.009\(002.085\)
ciscoasa_5545-x_firmware
009.014\(002.106\)
ciscoasa_5555-x_firmware
009.009\(002.085\)
ciscoasa_5555-x_firmware
009.014\(002.106\)
ciscoasa_5580_firmware
009.009\(002.085\)
ciscoasa_5580_firmware
009.014\(002.106\)
ciscoasa_5585-x_firmware
009.009\(002.085\)
ciscoasa_5585-x_firmware
009.014\(002.106\)
𝑥
= Vulnerable software versions