CVEDB API

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2021-1495

Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a configured file policy for HTTP. The vulnerability is due to incorrect handling of specific HTTP header parameters. An attacker could exploit this vulnerability by sending crafted HTTP packets through an affected device. A successful exploit could allow the attacker to bypass a configured file policy for HTTP packets and deliver a malicious payload.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.001

EPSS Ranking 36.9%

CVSS Severity

CVSS v3 Score 5.8

CVSS v2 Score 5.0

References

Products affected by CVE-2021-1495

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: 6.4.0.2

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: 6.7.0

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 » Ios Xe » Version: 16.12.1

cpe:2.3:a:cisco:ios_xe:16.12.1
Cisco » Ios Xe » Version: 16.12.2r

cpe:2.3:a:cisco:ios_xe:16.12.2r
Snort » Snort » Version: N/A

cpe:2.3:a:snort:snort:-
Snort » Snort » Version: 1.6

cpe:2.3:a:snort:snort:1.6
Snort » Snort » Version: 1.8.0

cpe:2.3:a:snort:snort:1.8.0
Snort » Snort » Version: 1.8.1

cpe:2.3:a:snort:snort:1.8.1
Snort » Snort » Version: 1.8.2

cpe:2.3:a:snort:snort:1.8.2
Snort » Snort » Version: 1.8.3

cpe:2.3:a:snort:snort:1.8.3
Snort » Snort » Version: 1.8.4

cpe:2.3:a:snort:snort:1.8.4
Snort » Snort » Version: 1.8.5

cpe:2.3:a:snort:snort:1.8.5
Snort » Snort » Version: 1.8.6

cpe:2.3:a:snort:snort:1.8.6
Snort » Snort » Version: 1.8.7

cpe:2.3:a:snort:snort:1.8.7
Snort » Snort » Version: 1.9.0

cpe:2.3:a:snort:snort:1.9.0
Snort » Snort » Version: 1.9.1

cpe:2.3:a:snort:snort:1.9.1
Snort » Snort » Version: 2.0

cpe:2.3:a:snort:snort:2.0
Snort » Snort » Version: 2.6.1

cpe:2.3:a:snort:snort:2.6.1
Snort » Snort » Version: 2.6.1.1

cpe:2.3:a:snort:snort:2.6.1.1
Snort » Snort » Version: 2.6.1.2

cpe:2.3:a:snort:snort:2.6.1.2
Snort » Snort » Version: 2.6.2

cpe:2.3:a:snort:snort:2.6.2
Snort » Snort » Version: 2.7_beta1

cpe:2.3:a:snort:snort:2.7_beta1
Snort » Snort » Version: 2.9.11.1

cpe:2.3:a:snort:snort:2.9.11.1
Snort » Snort » Version: 2.9.12.0

cpe:2.3:a:snort:snort:2.9.12.0
Snort » Snort » Version: 2.9.13.0

cpe:2.3:a:snort:snort:2.9.13.0
Snort » Snort » Version: 2.9.13.1

cpe:2.3:a:snort:snort:2.9.13.1
Snort » Snort » Version: 2.9.14

cpe:2.3:a:snort:snort:2.9.14
Snort » Snort » Version: 2.9.14.0

cpe:2.3:a:snort:snort:2.9.14.0
Snort » Snort » Version: 2.9.14.1

cpe:2.3:a:snort:snort:2.9.14.1
Snort » Snort » Version: 2.9.15

cpe:2.3:a:snort:snort:2.9.15
Snort » Snort » Version: 2.9.15.1

cpe:2.3:a:snort:snort:2.9.15.1
Snort » Snort » Version: 2.9.16

cpe:2.3:a:snort:snort:2.9.16
Snort » Snort » Version: 2.9.16.1

cpe:2.3:a:snort:snort:2.9.16.1
Snort » Snort » Version: 2.9.17

cpe:2.3:a:snort:snort:2.9.17
Cisco » 1100-4g/6g Integrated Services Router » Version: N/A

cpe:2.3:h:cisco:1100-4g/6g_integrated_services_router:-
Cisco » 1101 Integrated Services Router » Version: N/A

cpe:2.3:h:cisco:1101_integrated_services_router:-
Cisco » 1109 Integrated Services Router » Version: N/A

cpe:2.3:h:cisco:1109_integrated_services_router:-
Cisco » 1111x Integrated Services Router » Version: N/A

cpe:2.3:h:cisco:1111x_integrated_services_router:-
Cisco » 111x Integrated Services Router » Version: N/A

cpe:2.3:h:cisco:111x_integrated_services_router:-
Cisco » 1120 Integrated Services Router » Version: N/A

cpe:2.3:h:cisco:1120_integrated_services_router:-
Cisco » 1160 Integrated Services Router » Version: N/A

cpe:2.3:h:cisco:1160_integrated_services_router:-
Cisco » 3000 Integrated Services Router » Version: N/A

cpe:2.3:h:cisco:3000_integrated_services_router:-
Cisco » 4221 Integrated Services Router » Version: N/A

cpe:2.3:h:cisco:4221_integrated_services_router:-
Cisco » 4331 Integrated Services Router » Version: N/A

cpe:2.3:h:cisco:4331_integrated_services_router:-
Cisco » 4431 Integrated Services Router » Version: N/A

cpe:2.3:h:cisco:4431_integrated_services_router:-
Cisco » 4461 Integrated Services Router » Version: N/A

cpe:2.3:h:cisco:4461_integrated_services_router:-
Cisco » C8200-1n-4t » Version: N/A

cpe:2.3:h:cisco:c8200-1n-4t:-
Cisco » C8200l-1n-4t » Version: N/A

cpe:2.3:h:cisco:c8200l-1n-4t:-
Cisco » Catalyst 8300-1n1s-4t2x » Version: N/A

cpe:2.3:h:cisco:catalyst_8300-1n1s-4t2x:-
Cisco » Catalyst 8300-1n1s-6t » Version: N/A

cpe:2.3:h:cisco:catalyst_8300-1n1s-6t:-
Cisco » Catalyst 8300-2n2s-4t2x » Version: N/A

cpe:2.3:h:cisco:catalyst_8300-2n2s-4t2x:-
Cisco » Catalyst 8300-2n2s-6t » Version: N/A

cpe:2.3:h:cisco:catalyst_8300-2n2s-6t:-
Cisco » Catalyst 8500l » Version: N/A

cpe:2.3:h:cisco:catalyst_8500l:-
Cisco » Ios Xe » Version: 17.1

cpe:2.3:o:cisco:ios_xe:17.1
Cisco » Ios Xe » Version: 17.1.0

cpe:2.3:o:cisco:ios_xe:17.1.0
Cisco » Ios Xe » Version: 17.1.1

cpe:2.3:o:cisco:ios_xe:17.1.1
Cisco » Ios Xe » Version: 17.1.1a

cpe:2.3:o:cisco:ios_xe:17.1.1a
Cisco » Ios Xe » Version: 17.1.1s

cpe:2.3:o:cisco:ios_xe:17.1.1s
Cisco » Ios Xe » Version: 17.1.1t

cpe:2.3:o:cisco:ios_xe:17.1.1t
Cisco » Ios Xe » Version: 17.1.2

cpe:2.3:o:cisco:ios_xe:17.1.2
Cisco » Ios Xe » Version: 17.1.3

cpe:2.3:o:cisco:ios_xe:17.1.3
Cisco » Ios Xe » Version: 17.2

cpe:2.3:o:cisco:ios_xe:17.2
Cisco » Ios Xe » Version: 17.2.0

cpe:2.3:o:cisco:ios_xe:17.2.0
Cisco » Ios Xe » Version: 17.2.1

cpe:2.3:o:cisco:ios_xe:17.2.1
Cisco » Ios Xe » Version: 17.2.1a

cpe:2.3:o:cisco:ios_xe:17.2.1a
Cisco » Ios Xe » Version: 17.2.1r

cpe:2.3:o:cisco:ios_xe:17.2.1r
Cisco » Ios Xe » Version: 17.2.1t

cpe:2.3:o:cisco:ios_xe:17.2.1t
Cisco » Ios Xe » Version: 17.2.1v

cpe:2.3:o:cisco:ios_xe:17.2.1v
Cisco » Ios Xe » Version: 17.2.2

cpe:2.3:o:cisco:ios_xe:17.2.2
Cisco » Ios Xe » Version: 17.2.3

cpe:2.3:o:cisco:ios_xe:17.2.3
Cisco » Ios Xe » Version: 17.3

cpe:2.3:o:cisco:ios_xe:17.3
Cisco » Ios Xe » Version: 17.3.1

cpe:2.3:o:cisco:ios_xe:17.3.1
Cisco » Ios Xe » Version: 17.3.1a

cpe:2.3:o:cisco:ios_xe:17.3.1a
Cisco » Ios Xe » Version: 17.3.1w

cpe:2.3:o:cisco:ios_xe:17.3.1w
Cisco » Ios Xe » Version: 17.3.1x

cpe:2.3:o:cisco:ios_xe:17.3.1x
Cisco » Ios Xe » Version: 17.3.1z

cpe:2.3:o:cisco:ios_xe:17.3.1z
Cisco » Ios Xe » Version: 17.3.2

cpe:2.3:o:cisco:ios_xe:17.3.2
Cisco » Ios Xe » Version: 17.3.2a

cpe:2.3:o:cisco:ios_xe:17.3.2a
Cisco » Ios Xe » Version: 17.4

cpe:2.3:o:cisco:ios_xe:17.4

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2021-1495

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