CVEDB API

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2021-34783

A vulnerability in the software-based SSL/TLS message handler of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to insufficient validation of SSL/TLS messages when the device performs software-based SSL/TLS decryption. An attacker could exploit this vulnerability by sending a crafted SSL/TLS message to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Note: Datagram TLS (DTLS) messages cannot be used to exploit this vulnerability.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.003

EPSS Ranking 52.6%

CVSS Severity

CVSS v3 Score 8.6

CVSS v2 Score 7.8

References

Products affected by CVE-2021-34783

Cisco » Firepower Threat Defense » Version: 6.4.0

cpe:2.3:a:cisco:firepower_threat_defense:6.4.0
Cisco » Firepower Threat Defense » Version: 6.4.0.1

cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.1
Cisco » Firepower Threat Defense » Version: 6.4.0.10

cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.10
Cisco » Firepower Threat Defense » Version: 6.4.0.11

cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.11
Cisco » Firepower Threat Defense » Version: 6.4.0.12

cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.12
Cisco » Firepower Threat Defense » Version: 6.4.0.2

cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.2
Cisco » Firepower Threat Defense » Version: 6.4.0.3

cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.3
Cisco » Firepower Threat Defense » Version: 6.4.0.4

cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.4
Cisco » Firepower Threat Defense » Version: 6.4.0.5

cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.5
Cisco » Firepower Threat Defense » Version: 6.4.0.6

cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.6
Cisco » Firepower Threat Defense » Version: 6.4.0.7

cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.7
Cisco » Firepower Threat Defense » Version: 6.4.0.8

cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.8
Cisco » Firepower Threat Defense » Version: 6.4.0.9

cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.9
Cisco » Firepower Threat Defense » Version: 6.6.0

cpe:2.3:a:cisco:firepower_threat_defense:6.6.0
Cisco » Firepower Threat Defense » Version: 6.6.0.1

cpe:2.3:a:cisco:firepower_threat_defense:6.6.0.1
Cisco » Firepower Threat Defense » Version: 6.6.1

cpe:2.3:a:cisco:firepower_threat_defense:6.6.1
Cisco » Firepower Threat Defense » Version: 6.6.3

cpe:2.3:a:cisco:firepower_threat_defense:6.6.3
Cisco » Firepower Threat Defense » Version: 6.6.4

cpe:2.3:a:cisco:firepower_threat_defense:6.6.4
Cisco » Firepower Threat Defense » Version: 6.7.0

cpe:2.3:a:cisco:firepower_threat_defense:6.7.0
Cisco » Firepower Threat Defense » Version: 6.7.0.1

cpe:2.3:a:cisco:firepower_threat_defense:6.7.0.1
Cisco » Firepower Threat Defense » Version: 6.7.0.2

cpe:2.3:a:cisco:firepower_threat_defense:6.7.0.2
Cisco » Firepower Threat Defense » Version: 7.0.0

cpe:2.3:a:cisco:firepower_threat_defense:7.0.0
Cisco » Firepower Threat Defense » Version: 7.0.0.1

cpe:2.3:a:cisco:firepower_threat_defense:7.0.0.1
Cisco » Asa 5505 » Version: N/A

cpe:2.3:h:cisco:asa_5505:-
Cisco » Asa 5512-X » Version: N/A

cpe:2.3:h:cisco:asa_5512-x:-
Cisco » Asa 5515-X » Version: N/A

cpe:2.3:h:cisco:asa_5515-x:-
Cisco » Asa 5525-X » Version: N/A

cpe:2.3:h:cisco:asa_5525-x:-
Cisco » Asa 5545-X » Version: N/A

cpe:2.3:h:cisco:asa_5545-x:-
Cisco » Asa 5555-X » Version: N/A

cpe:2.3:h:cisco:asa_5555-x:-
Cisco » Asa 5580 » Version: N/A

cpe:2.3:h:cisco:asa_5580:-
Cisco » Asa 5585-X » Version: N/A

cpe:2.3:h:cisco:asa_5585-x:-
Cisco » Adaptive Security Appliance Software » Version: 9.12.0

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.12.0
Cisco » Adaptive Security Appliance Software » Version: 9.12.1

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.12.1
Cisco » Adaptive Security Appliance Software » Version: 9.12.1.2

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.12.1.2
Cisco » Adaptive Security Appliance Software » Version: 9.12.1.3

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.12.1.3
Cisco » Adaptive Security Appliance Software » Version: 9.12.2

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.12.2
Cisco » Adaptive Security Appliance Software » Version: 9.12.2.1

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.12.2.1
Cisco » Adaptive Security Appliance Software » Version: 9.12.2.4

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.12.2.4
Cisco » Adaptive Security Appliance Software » Version: 9.12.2.5

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.12.2.5
Cisco » Adaptive Security Appliance Software » Version: 9.12.2.9

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.12.2.9
Cisco » Adaptive Security Appliance Software » Version: 9.12.3

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.12.3
Cisco » Adaptive Security Appliance Software » Version: 9.12.3.12

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.12.3.12
Cisco » Adaptive Security Appliance Software » Version: 9.12.3.2

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.12.3.2
Cisco » Adaptive Security Appliance Software » Version: 9.12.3.6

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.12.3.6
Cisco » Adaptive Security Appliance Software » Version: 9.12.3.7

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.12.3.7
Cisco » Adaptive Security Appliance Software » Version: 9.12.3.9

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.12.3.9
Cisco » Adaptive Security Appliance Software » Version: 9.12.4

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.12.4
Cisco » Adaptive Security Appliance Software » Version: 9.12.4.10

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.12.4.10
Cisco » Adaptive Security Appliance Software » Version: 9.12.4.13

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.12.4.13
Cisco » Adaptive Security Appliance Software » Version: 9.12.4.18

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.12.4.18
Cisco » Adaptive Security Appliance Software » Version: 9.12.4.2

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.12.4.2
Cisco » Adaptive Security Appliance Software » Version: 9.12.4.24

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.12.4.24
Cisco » Adaptive Security Appliance Software » Version: 9.12.4.25

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.12.4.25
Cisco » Adaptive Security Appliance Software » Version: 9.12.4.26

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.12.4.26
Cisco » Adaptive Security Appliance Software » Version: 9.12.4.3

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.12.4.3
Cisco » Adaptive Security Appliance Software » Version: 9.12.4.4

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.12.4.4
Cisco » Adaptive Security Appliance Software » Version: 9.12.4.7

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.12.4.7
Cisco » Adaptive Security Appliance Software » Version: 9.12.4.8

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.12.4.8
Cisco » Adaptive Security Appliance Software » Version: 9.14.1

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.14.1
Cisco » Adaptive Security Appliance Software » Version: 9.14.1.10

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.14.1.10
Cisco » Adaptive Security Appliance Software » Version: 9.14.1.15

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.14.1.15
Cisco » Adaptive Security Appliance Software » Version: 9.14.1.19

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.14.1.19
Cisco » Adaptive Security Appliance Software » Version: 9.14.1.29

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.14.1.29
Cisco » Adaptive Security Appliance Software » Version: 9.14.1.30

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.14.1.30
Cisco » Adaptive Security Appliance Software » Version: 9.14.1.6

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.14.1.6
Cisco » Adaptive Security Appliance Software » Version: 9.14.2

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.14.2
Cisco » Adaptive Security Appliance Software » Version: 9.14.2.13

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.14.2.13
Cisco » Adaptive Security Appliance Software » Version: 9.14.2.15

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.14.2.15
Cisco » Adaptive Security Appliance Software » Version: 9.14.2.4

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.14.2.4
Cisco » Adaptive Security Appliance Software » Version: 9.14.2.7

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.14.2.7
Cisco » Adaptive Security Appliance Software » Version: 9.14.2.8

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.14.2.8
Cisco » Adaptive Security Appliance Software » Version: 9.14.3

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.14.3
Cisco » Adaptive Security Appliance Software » Version: 9.14.3.1

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.14.3.1
Cisco » Adaptive Security Appliance Software » Version: 9.15.1

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.15.1
Cisco » Adaptive Security Appliance Software » Version: 9.15.1.1

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.15.1.1
Cisco » Adaptive Security Appliance Software » Version: 9.15.1.10

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.15.1.10
Cisco » Adaptive Security Appliance Software » Version: 9.15.1.15

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.15.1.15
Cisco » Adaptive Security Appliance Software » Version: 9.15.1.16

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.15.1.16
Cisco » Adaptive Security Appliance Software » Version: 9.15.1.4

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.15.1.4
Cisco » Adaptive Security Appliance Software » Version: 9.15.1.7

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.15.1.7
Cisco » Adaptive Security Appliance Software » Version: 9.16.1

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.16.1
Cisco » Adaptive Security Appliance Software » Version: 9.16.1.28

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.16.1.28
Cisco » Adaptive Security Appliance Software » Version: 9.8.0

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.0
Cisco » Adaptive Security Appliance Software » Version: 9.8.0.0

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.0.0
Cisco » Adaptive Security Appliance Software » Version: 9.8.1

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.1
Cisco » Adaptive Security Appliance Software » Version: 9.8.1.5

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.1.5
Cisco » Adaptive Security Appliance Software » Version: 9.8.1.7

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.1.7
Cisco » Adaptive Security Appliance Software » Version: 9.8.2

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.2
Cisco » Adaptive Security Appliance Software » Version: 9.8.2.14

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.2.14
Cisco » Adaptive Security Appliance Software » Version: 9.8.2.15

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.2.15
Cisco » Adaptive Security Appliance Software » Version: 9.8.2.17

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.2.17
Cisco » Adaptive Security Appliance Software » Version: 9.8.2.20

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.2.20
Cisco » Adaptive Security Appliance Software » Version: 9.8.2.24

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.2.24
Cisco » Adaptive Security Appliance Software » Version: 9.8.2.26

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.2.26
Cisco » Adaptive Security Appliance Software » Version: 9.8.2.28

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.2.28
Cisco » Adaptive Security Appliance Software » Version: 9.8.2.33

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.2.33
Cisco » Adaptive Security Appliance Software » Version: 9.8.2.35

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.2.35
Cisco » Adaptive Security Appliance Software » Version: 9.8.2.38

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.2.38
Cisco » Adaptive Security Appliance Software » Version: 9.8.2.45

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.2.45
Cisco » Adaptive Security Appliance Software » Version: 9.8.2.8

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.2.8
Cisco » Adaptive Security Appliance Software » Version: 9.8.3

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.3
Cisco » Adaptive Security Appliance Software » Version: 9.8.3.11

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.3.11
Cisco » Adaptive Security Appliance Software » Version: 9.8.3.14

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.3.14
Cisco » Adaptive Security Appliance Software » Version: 9.8.3.16

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.3.16
Cisco » Adaptive Security Appliance Software » Version: 9.8.3.18

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.3.18
Cisco » Adaptive Security Appliance Software » Version: 9.8.3.21

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.3.21
Cisco » Adaptive Security Appliance Software » Version: 9.8.3.26

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.3.26
Cisco » Adaptive Security Appliance Software » Version: 9.8.3.29

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.3.29
Cisco » Adaptive Security Appliance Software » Version: 9.8.3.8

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.3.8
Cisco » Adaptive Security Appliance Software » Version: 9.8.4

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4
Cisco » Adaptive Security Appliance Software » Version: 9.8.4.10

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.10
Cisco » Adaptive Security Appliance Software » Version: 9.8.4.12

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.12
Cisco » Adaptive Security Appliance Software » Version: 9.8.4.15

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.15
Cisco » Adaptive Security Appliance Software » Version: 9.8.4.17

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.17
Cisco » Adaptive Security Appliance Software » Version: 9.8.4.20

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.20
Cisco » Adaptive Security Appliance Software » Version: 9.8.4.22

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.22
Cisco » Adaptive Security Appliance Software » Version: 9.8.4.24

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.24
Cisco » Adaptive Security Appliance Software » Version: 9.8.4.25

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.25
Cisco » Adaptive Security Appliance Software » Version: 9.8.4.26

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.26
Cisco » Adaptive Security Appliance Software » Version: 9.8.4.29

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.29
Cisco » Adaptive Security Appliance Software » Version: 9.8.4.3

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.3
Cisco » Adaptive Security Appliance Software » Version: 9.8.4.32

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.32
Cisco » Adaptive Security Appliance Software » Version: 9.8.4.33

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.33
Cisco » Adaptive Security Appliance Software » Version: 9.8.4.34

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.34
Cisco » Adaptive Security Appliance Software » Version: 9.8.4.35

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.35
Cisco » Adaptive Security Appliance Software » Version: 9.8.4.39

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.39
Cisco » Adaptive Security Appliance Software » Version: 9.8.4.7

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.7
Cisco » Adaptive Security Appliance Software » Version: 9.8.4.8

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.8
Cisco » Adaptive Security Appliance Software » Version: 9.8.4.9

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.9
Cisco » Asa 5505 Firmware » Version: 009.016(001)

cpe:2.3:o:cisco:asa_5505_firmware:009.016(001)
Cisco » Asa 5505 Firmware » Version: 009.016(001.025)

cpe:2.3:o:cisco:asa_5505_firmware:009.016(001.025)
Cisco » Asa 5512-X Firmware » Version: 009.016(001)

cpe:2.3:o:cisco:asa_5512-x_firmware:009.016(001)
Cisco » Asa 5512-X Firmware » Version: 009.016(001.025)

cpe:2.3:o:cisco:asa_5512-x_firmware:009.016(001.025)
Cisco » Asa 5515-X Firmware » Version: 009.016(001)

cpe:2.3:o:cisco:asa_5515-x_firmware:009.016(001)
Cisco » Asa 5515-X Firmware » Version: 009.016(001.025)

cpe:2.3:o:cisco:asa_5515-x_firmware:009.016(001.025)
Cisco » Asa 5525-X Firmware » Version: 009.016(001)

cpe:2.3:o:cisco:asa_5525-x_firmware:009.016(001)
Cisco » Asa 5525-X Firmware » Version: 009.016(001.025)

cpe:2.3:o:cisco:asa_5525-x_firmware:009.016(001.025)
Cisco » Asa 5545-X Firmware » Version: 009.016(001)

cpe:2.3:o:cisco:asa_5545-x_firmware:009.016(001)
Cisco » Asa 5545-X Firmware » Version: 009.016(001.025)

cpe:2.3:o:cisco:asa_5545-x_firmware:009.016(001.025)
Cisco » Asa 5555-X Firmware » Version: 009.016(001)

cpe:2.3:o:cisco:asa_5555-x_firmware:009.016(001)
Cisco » Asa 5555-X Firmware » Version: 009.016(001.025)

cpe:2.3:o:cisco:asa_5555-x_firmware:009.016(001.025)
Cisco » Asa 5580 Firmware » Version: 009.016(001)

cpe:2.3:o:cisco:asa_5580_firmware:009.016(001)
Cisco » Asa 5580 Firmware » Version: 009.016(001.025)

cpe:2.3:o:cisco:asa_5580_firmware:009.016(001.025)
Cisco » Asa 5585-X Firmware » Version: 009.016(001)

cpe:2.3:o:cisco:asa_5585-x_firmware:009.016(001)
Cisco » Asa 5585-X Firmware » Version: 009.016(001.025)

cpe:2.3:o:cisco:asa_5585-x_firmware:009.016(001.025)

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2021-34783

Products

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