CVEDB API

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2022-20767

A vulnerability in the Snort rule evaluation function of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper handling of the DNS reputation enforcement rule. An attacker could exploit this vulnerability by sending crafted UDP packets through an affected device to force a buildup of UDP connections. A successful exploit could allow the attacker to cause traffic that is going through the affected device to be dropped, resulting in a DoS condition. Note: This vulnerability only affects Cisco FTD devices that are running Snort 3.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.021

EPSS Ranking 83.2%

CVSS Severity

CVSS v3 Score 8.6

CVSS v2 Score 7.8

References

Products affected by CVE-2022-20767

Cisco » Firepower Threat Defense » Version: N/A

cpe:2.3:a:cisco:firepower_threat_defense:-
Cisco » Firepower Threat Defense » Version: 5.3.0

cpe:2.3:a:cisco:firepower_threat_defense:5.3.0
Cisco » Firepower Threat Defense » Version: 5.4.0

cpe:2.3:a:cisco:firepower_threat_defense:5.4.0
Cisco » Firepower Threat Defense » Version: 6.0

cpe:2.3:a:cisco:firepower_threat_defense:6.0
Cisco » Firepower Threat Defense » Version: 6.0.0

cpe:2.3:a:cisco:firepower_threat_defense:6.0.0
Cisco » Firepower Threat Defense » Version: 6.0.0.1

cpe:2.3:a:cisco:firepower_threat_defense:6.0.0.1
Cisco » Firepower Threat Defense » Version: 6.0.1

cpe:2.3:a:cisco:firepower_threat_defense:6.0.1
Cisco » Firepower Threat Defense » Version: 6.0.1.1

cpe:2.3:a:cisco:firepower_threat_defense:6.0.1.1
Cisco » Firepower Threat Defense » Version: 6.0.1.2

cpe:2.3:a:cisco:firepower_threat_defense:6.0.1.2
Cisco » Firepower Threat Defense » Version: 6.0.1.3

cpe:2.3:a:cisco:firepower_threat_defense:6.0.1.3
Cisco » Firepower Threat Defense » Version: 6.0.1.4

cpe:2.3:a:cisco:firepower_threat_defense:6.0.1.4
Cisco » Firepower Threat Defense » Version: 6.1.0

cpe:2.3:a:cisco:firepower_threat_defense:6.1.0
Cisco » Firepower Threat Defense » Version: 6.1.0.1

cpe:2.3:a:cisco:firepower_threat_defense:6.1.0.1
Cisco » Firepower Threat Defense » Version: 6.1.0.2

cpe:2.3:a:cisco:firepower_threat_defense:6.1.0.2
Cisco » Firepower Threat Defense » Version: 6.1.0.3

cpe:2.3:a:cisco:firepower_threat_defense:6.1.0.3
Cisco » Firepower Threat Defense » Version: 6.1.0.4

cpe:2.3:a:cisco:firepower_threat_defense:6.1.0.4
Cisco » Firepower Threat Defense » Version: 6.1.0.5

cpe:2.3:a:cisco:firepower_threat_defense:6.1.0.5
Cisco » Firepower Threat Defense » Version: 6.1.0.6

cpe:2.3:a:cisco:firepower_threat_defense:6.1.0.6
Cisco » Firepower Threat Defense » Version: 6.1.0.7

cpe:2.3:a:cisco:firepower_threat_defense:6.1.0.7
Cisco » Firepower Threat Defense » Version: 6.2.0

cpe:2.3:a:cisco:firepower_threat_defense:6.2.0
Cisco » Firepower Threat Defense » Version: 6.2.0.1

cpe:2.3:a:cisco:firepower_threat_defense:6.2.0.1
Cisco » Firepower Threat Defense » Version: 6.2.0.2

cpe:2.3:a:cisco:firepower_threat_defense:6.2.0.2
Cisco » Firepower Threat Defense » Version: 6.2.0.3

cpe:2.3:a:cisco:firepower_threat_defense:6.2.0.3
Cisco » Firepower Threat Defense » Version: 6.2.0.4

cpe:2.3:a:cisco:firepower_threat_defense:6.2.0.4
Cisco » Firepower Threat Defense » Version: 6.2.0.5

cpe:2.3:a:cisco:firepower_threat_defense:6.2.0.5
Cisco » Firepower Threat Defense » Version: 6.2.0.6

cpe:2.3:a:cisco:firepower_threat_defense:6.2.0.6
Cisco » Firepower Threat Defense » Version: 6.2.1

cpe:2.3:a:cisco:firepower_threat_defense:6.2.1
Cisco » Firepower Threat Defense » Version: 6.2.2

cpe:2.3:a:cisco:firepower_threat_defense:6.2.2
Cisco » Firepower Threat Defense » Version: 6.2.2.1

cpe:2.3:a:cisco:firepower_threat_defense:6.2.2.1
Cisco » Firepower Threat Defense » Version: 6.2.2.2

cpe:2.3:a:cisco:firepower_threat_defense:6.2.2.2
Cisco » Firepower Threat Defense » Version: 6.2.2.3

cpe:2.3:a:cisco:firepower_threat_defense:6.2.2.3
Cisco » Firepower Threat Defense » Version: 6.2.2.4

cpe:2.3:a:cisco:firepower_threat_defense:6.2.2.4
Cisco » Firepower Threat Defense » Version: 6.2.2.5

cpe:2.3:a:cisco:firepower_threat_defense:6.2.2.5
Cisco » Firepower Threat Defense » Version: 6.2.3

cpe:2.3:a:cisco:firepower_threat_defense:6.2.3
Cisco » Firepower Threat Defense » Version: 6.2.3.0

cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.0
Cisco » Firepower Threat Defense » Version: 6.2.3.1

cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.1
Cisco » Firepower Threat Defense » Version: 6.2.3.10

cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.10
Cisco » Firepower Threat Defense » Version: 6.2.3.11

cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.11
Cisco » Firepower Threat Defense » Version: 6.2.3.12

cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.12
Cisco » Firepower Threat Defense » Version: 6.2.3.13

cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.13
Cisco » Firepower Threat Defense » Version: 6.2.3.14

cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.14
Cisco » Firepower Threat Defense » Version: 6.2.3.15

cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.15
Cisco » Firepower Threat Defense » Version: 6.2.3.16

cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.16
Cisco » Firepower Threat Defense » Version: 6.2.3.17

cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.17
Cisco » Firepower Threat Defense » Version: 6.2.3.18

cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.18
Cisco » Firepower Threat Defense » Version: 6.2.3.2

cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.2
Cisco » Firepower Threat Defense » Version: 6.2.3.3

cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.3
Cisco » Firepower Threat Defense » Version: 6.2.3.4

cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.4
Cisco » Firepower Threat Defense » Version: 6.2.3.5

cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.5
Cisco » Firepower Threat Defense » Version: 6.2.3.6

cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.6
Cisco » Firepower Threat Defense » Version: 6.2.3.7

cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.7
Cisco » Firepower Threat Defense » Version: 6.2.3.8

cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.8
Cisco » Firepower Threat Defense » Version: 6.2.3.9

cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.9
Cisco » Firepower Threat Defense » Version: 6.3.0

cpe:2.3:a:cisco:firepower_threat_defense:6.3.0
Cisco » Firepower Threat Defense » Version: 6.3.0.1

cpe:2.3:a:cisco:firepower_threat_defense:6.3.0.1
Cisco » Firepower Threat Defense » Version: 6.3.0.2

cpe:2.3:a:cisco:firepower_threat_defense:6.3.0.2
Cisco » Firepower Threat Defense » Version: 6.3.0.3

cpe:2.3:a:cisco:firepower_threat_defense:6.3.0.3
Cisco » Firepower Threat Defense » Version: 6.3.0.4

cpe:2.3:a:cisco:firepower_threat_defense:6.3.0.4
Cisco » Firepower Threat Defense » Version: 6.3.0.5

cpe:2.3:a:cisco:firepower_threat_defense:6.3.0.5
Cisco » Firepower Threat Defense » Version: 6.3.0.6

cpe:2.3:a:cisco:firepower_threat_defense:6.3.0.6
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: 6.4.0.13

cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.13
Cisco » Firepower Threat Defense » Version: 6.4.0.14

cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.14
Cisco » Firepower Threat Defense » Version: 6.4.0.15

cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.15
Cisco » Firepower Threat Defense » Version: 6.4.0.16

cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.16
Cisco » Firepower Threat Defense » Version: 6.4.0.17

cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.17
Cisco » Firepower Threat Defense » Version: 6.4.0.18

cpe:2.3:a:cisco:firepower_threat_defense:6.4.0.18
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: 6.4.1

cpe:2.3:a:cisco:firepower_threat_defense:6.4.1
Cisco » Firepower Threat Defense » Version: 6.5.0

cpe:2.3:a:cisco:firepower_threat_defense:6.5.0
Cisco » Firepower Threat Defense » Version: 6.5.0.1

cpe:2.3:a:cisco:firepower_threat_defense:6.5.0.1
Cisco » Firepower Threat Defense » Version: 6.5.0.2

cpe:2.3:a:cisco:firepower_threat_defense:6.5.0.2
Cisco » Firepower Threat Defense » Version: 6.5.0.3

cpe:2.3:a:cisco:firepower_threat_defense:6.5.0.3
Cisco » Firepower Threat Defense » Version: 6.5.0.4

cpe:2.3:a:cisco:firepower_threat_defense:6.5.0.4
Cisco » Firepower Threat Defense » Version: 6.5.0.5

cpe:2.3:a:cisco:firepower_threat_defense:6.5.0.5
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: 6.6.5

cpe:2.3:a:cisco:firepower_threat_defense:6.6.5
Cisco » Firepower Threat Defense » Version: 6.6.5.1

cpe:2.3:a:cisco:firepower_threat_defense:6.6.5.1
Cisco » Firepower Threat Defense » Version: 6.6.5.2

cpe:2.3:a:cisco:firepower_threat_defense:6.6.5.2
Cisco » Firepower Threat Defense » Version: 6.6.7

cpe:2.3:a:cisco:firepower_threat_defense:6.6.7
Cisco » Firepower Threat Defense » Version: 6.6.7.1

cpe:2.3:a:cisco:firepower_threat_defense:6.6.7.1
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: 6.7.0.3

cpe:2.3:a:cisco:firepower_threat_defense:6.7.0.3
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 » Firepower Threat Defense » Version: 7.0.1

cpe:2.3:a:cisco:firepower_threat_defense:7.0.1
Cisco » Firepower Threat Defense » Version: 7.0.1.1

cpe:2.3:a:cisco:firepower_threat_defense:7.0.1.1
Cisco » Firepower Threat Defense » Version: 7.1.0

cpe:2.3:a:cisco:firepower_threat_defense:7.1.0

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2022-20767

Products

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