CVEDB API

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2022-20751

A vulnerability in the Snort detection engine integration for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause unlimited memory consumption, which could lead to a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient memory management for certain Snort events. An attacker could exploit this vulnerability by sending a series of crafted IP packets that would generate specific Snort events on an affected device. A sustained attack could cause an out of memory condition on the affected device. A successful exploit could allow the attacker to interrupt all traffic flowing through the affected device. In some circumstances, the attacker may be able to cause the device to reload, resulting in a DoS condition.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.008

EPSS Ranking 73.1%

CVSS Severity

CVSS v3 Score 8.6

CVSS v2 Score 7.1

References

Products affected by CVE-2022-20751

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: 6.4.0.2

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: 6.5.0

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: 7.0.0

cpe:2.3:a:cisco:firepower_threat_defense:7.0.0
Cisco » Firepower Threat Defense » Version: 7.0.0.0

cpe:2.3:a:cisco:firepower_threat_defense:7.0.0.0
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: 7.1.0.0

cpe:2.3:a:cisco:firepower_threat_defense:7.1.0.0
Cisco » Firepower 1000 » Version: N/A

cpe:2.3:h:cisco:firepower_1000:-
Cisco » Firepower 1010 » Version: N/A

cpe:2.3:h:cisco:firepower_1010:-
Cisco » Firepower 1020 » Version: N/A

cpe:2.3:h:cisco:firepower_1020:-
Cisco » Firepower 1030 » Version: N/A

cpe:2.3:h:cisco:firepower_1030:-
Cisco » Firepower 1040 » Version: N/A

cpe:2.3:h:cisco:firepower_1040:-
Cisco » Firepower 1120 » Version: N/A

cpe:2.3:h:cisco:firepower_1120:-
Cisco » Firepower 1140 » Version: N/A

cpe:2.3:h:cisco:firepower_1140:-
Cisco » Firepower 1150 » Version: N/A

cpe:2.3:h:cisco:firepower_1150:-
Cisco » Firepower 2100 » Version: N/A

cpe:2.3:h:cisco:firepower_2100:-
Cisco » Firepower 2110 » Version: N/A

cpe:2.3:h:cisco:firepower_2110:-
Cisco » Firepower 2120 » Version: N/A

cpe:2.3:h:cisco:firepower_2120:-
Cisco » Firepower 2130 » Version: N/A

cpe:2.3:h:cisco:firepower_2130:-
Cisco » Firepower 2140 » Version: N/A

cpe:2.3:h:cisco:firepower_2140:-
Cisco » Firepower 4100 » Version: N/A

cpe:2.3:h:cisco:firepower_4100:-
Cisco » Firepower 4110 » Version: N/A

cpe:2.3:h:cisco:firepower_4110:-
Cisco » Firepower 4112 » Version: N/A

cpe:2.3:h:cisco:firepower_4112:-
Cisco » Firepower 4115 » Version: N/A

cpe:2.3:h:cisco:firepower_4115:-
Cisco » Firepower 4120 » Version: N/A

cpe:2.3:h:cisco:firepower_4120:-
Cisco » Firepower 4125 » Version: N/A

cpe:2.3:h:cisco:firepower_4125:-
Cisco » Firepower 4140 » Version: N/A

cpe:2.3:h:cisco:firepower_4140:-
Cisco » Firepower 4145 » Version: N/A

cpe:2.3:h:cisco:firepower_4145:-
Cisco » Firepower 4150 » Version: N/A

cpe:2.3:h:cisco:firepower_4150:-

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2022-20751

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