CVEDB API

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2021-1236

Multiple Cisco products are affected by a vulnerability in the Snort application detection engine that could allow an unauthenticated, remote attacker to bypass the configured policies on an affected system. The vulnerability is due to a flaw in the detection algorithm. An attacker could exploit this vulnerability by sending crafted packets that would flow through an affected system. A successful exploit could allow the attacker to bypass the configured policies and deliver a malicious payload to the protected network.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.021

EPSS Ranking 80.4%

CVSS Severity

CVSS v3 Score 4.0

CVSS v2 Score 5.0

References

Products affected by CVE-2021-1236

Cisco » Secure Firewall Management Center » Version: 2.9.14.0

cpe:2.3:a:cisco:secure_firewall_management_center:2.9.14.0
Cisco » Secure Firewall Management Center » Version: 2.9.14.14

cpe:2.3:a:cisco:secure_firewall_management_center:2.9.14.14
Cisco » Secure Firewall Management Center » Version: 2.9.15

cpe:2.3:a:cisco:secure_firewall_management_center:2.9.15
Cisco » Secure Firewall Management Center » Version: 2.9.17

cpe:2.3:a:cisco:secure_firewall_management_center:2.9.17
Cisco » Secure Firewall Threat Defense » Version: N/A

cpe:2.3:a:cisco:secure_firewall_threat_defense:-
Cisco » Secure Firewall Threat Defense » Version: 5.3.0

cpe:2.3:a:cisco:secure_firewall_threat_defense:5.3.0
Cisco » Secure Firewall Threat Defense » Version: 5.4.0

cpe:2.3:a:cisco:secure_firewall_threat_defense:5.4.0
Cisco » Secure Firewall Threat Defense » Version: 6.0.0

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.0.0
Cisco » Secure Firewall Threat Defense » Version: 6.0.0.1

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.0.0.1
Cisco » Secure Firewall Threat Defense » Version: 6.0.1

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.0.1
Cisco » Secure Firewall Threat Defense » Version: 6.0.1.1

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.0.1.1
Cisco » Secure Firewall Threat Defense » Version: 6.0.1.2

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.0.1.2
Cisco » Secure Firewall Threat Defense » Version: 6.0.1.3

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.0.1.3
Cisco » Secure Firewall Threat Defense » Version: 6.0.1.4

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.0.1.4
Cisco » Secure Firewall Threat Defense » Version: 6.1.0

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.1.0
Cisco » Secure Firewall Threat Defense » Version: 6.1.0.1

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.1.0.1
Cisco » Secure Firewall Threat Defense » Version: 6.1.0.2

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.1.0.2
Cisco » Secure Firewall Threat Defense » Version: 6.1.0.3

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.1.0.3
Cisco » Secure Firewall Threat Defense » Version: 6.1.0.4

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.1.0.4
Cisco » Secure Firewall Threat Defense » Version: 6.1.0.5

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.1.0.5
Cisco » Secure Firewall Threat Defense » Version: 6.1.0.6

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.1.0.6
Cisco » Secure Firewall Threat Defense » Version: 6.1.0.7

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.1.0.7
Cisco » Secure Firewall Threat Defense » Version: 6.2.0

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.0
Cisco » Secure Firewall Threat Defense » Version: 6.2.0.1

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.0.1
Cisco » Secure Firewall Threat Defense » Version: 6.2.0.2

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.0.2
Cisco » Secure Firewall Threat Defense » Version: 6.2.0.3

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.0.3
Cisco » Secure Firewall Threat Defense » Version: 6.2.0.4

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.0.4
Cisco » Secure Firewall Threat Defense » Version: 6.2.0.5

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.0.5
Cisco » Secure Firewall Threat Defense » Version: 6.2.0.6

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.0.6
Cisco » Secure Firewall Threat Defense » Version: 6.2.1

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.1
Cisco » Secure Firewall Threat Defense » Version: 6.2.2

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.2
Cisco » Secure Firewall Threat Defense » Version: 6.2.2.1

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.2.1
Cisco » Secure Firewall Threat Defense » Version: 6.2.2.2

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.2.2
Cisco » Secure Firewall Threat Defense » Version: 6.2.2.3

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.2.3
Cisco » Secure Firewall Threat Defense » Version: 6.2.2.4

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.2.4
Cisco » Secure Firewall Threat Defense » Version: 6.2.2.5

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.2.5
Cisco » Secure Firewall Threat Defense » Version: 6.2.3

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3
Cisco » Secure Firewall Threat Defense » Version: 6.2.3.0

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.0
Cisco » Secure Firewall Threat Defense » Version: 6.2.3.1

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.1
Cisco » Secure Firewall Threat Defense » Version: 6.2.3.10

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.10
Cisco » Secure Firewall Threat Defense » Version: 6.2.3.11

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.11
Cisco » Secure Firewall Threat Defense » Version: 6.2.3.12

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.12
Cisco » Secure Firewall Threat Defense » Version: 6.2.3.13

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.13
Cisco » Secure Firewall Threat Defense » Version: 6.2.3.14

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.14
Cisco » Secure Firewall Threat Defense » Version: 6.2.3.15

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.15
Cisco » Secure Firewall Threat Defense » Version: 6.2.3.16

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.16
Cisco » Secure Firewall Threat Defense » Version: 6.2.3.17

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.17
Cisco » Secure Firewall Threat Defense » Version: 6.2.3.18

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.18
Cisco » Secure Firewall Threat Defense » Version: 6.2.3.2

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.2
Cisco » Secure Firewall Threat Defense » Version: 6.2.3.3

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.3
Cisco » Secure Firewall Threat Defense » Version: 6.2.3.4

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.4
Cisco » Secure Firewall Threat Defense » Version: 6.2.3.5

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.5
Cisco » Secure Firewall Threat Defense » Version: 6.2.3.6

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.6
Cisco » Secure Firewall Threat Defense » Version: 6.2.3.7

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.7
Cisco » Secure Firewall Threat Defense » Version: 6.2.3.8

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.8
Cisco » Secure Firewall Threat Defense » Version: 6.2.3.9

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.9
Cisco » Secure Firewall Threat Defense » Version: 6.3.0

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.3.0
Cisco » Secure Firewall Threat Defense » Version: 6.3.0.1

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.3.0.1
Cisco » Secure Firewall Threat Defense » Version: 6.3.0.2

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.3.0.2
Cisco » Secure Firewall Threat Defense » Version: 6.3.0.3

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.3.0.3
Cisco » Secure Firewall Threat Defense » Version: 6.3.0.4

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.3.0.4
Cisco » Secure Firewall Threat Defense » Version: 6.3.0.5

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.3.0.5
Cisco » Secure Firewall Threat Defense » Version: 6.3.0.6

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.3.0.6
Cisco » Secure Firewall Threat Defense » Version: 6.4.0

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0
Cisco » Secure Firewall Threat Defense » Version: 6.4.0.1

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.1
Cisco » Secure Firewall Threat Defense » Version: 6.4.0.10

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.10
Cisco » Secure Firewall Threat Defense » Version: 6.4.0.11

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.11
Cisco » Secure Firewall Threat Defense » Version: 6.4.0.12

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.12
Cisco » Secure Firewall Threat Defense » Version: 6.4.0.13

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.13
Cisco » Secure Firewall Threat Defense » Version: 6.4.0.14

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.14
Cisco » Secure Firewall Threat Defense » Version: 6.4.0.15

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.15
Cisco » Secure Firewall Threat Defense » Version: 6.4.0.16

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.16
Cisco » Secure Firewall Threat Defense » Version: 6.4.0.17

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.17
Cisco » Secure Firewall Threat Defense » Version: 6.4.0.18

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.18
Cisco » Secure Firewall Threat Defense » Version: 6.4.0.2

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.2
Cisco » Secure Firewall Threat Defense » Version: 6.4.0.3

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.3
Cisco » Secure Firewall Threat Defense » Version: 6.4.0.4

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.4
Cisco » Secure Firewall Threat Defense » Version: 6.4.0.5

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.5
Cisco » Secure Firewall Threat Defense » Version: 6.4.0.6

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.6
Cisco » Secure Firewall Threat Defense » Version: 6.4.0.7

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.7
Cisco » Secure Firewall Threat Defense » Version: 6.4.0.8

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.8
Cisco » Secure Firewall Threat Defense » Version: 6.4.0.9

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.0.9
Cisco » Secure Firewall Threat Defense » Version: 6.4.1

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.4.1
Cisco » Secure Firewall Threat Defense » Version: 6.5.0

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.5.0
Cisco » Secure Firewall Threat Defense » Version: 6.5.0.1

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.5.0.1
Cisco » Secure Firewall Threat Defense » Version: 6.5.0.2

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.5.0.2
Cisco » Secure Firewall Threat Defense » Version: 6.5.0.3

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.5.0.3
Cisco » Secure Firewall Threat Defense » Version: 6.5.0.4

cpe:2.3:a:cisco:secure_firewall_threat_defense:6.5.0.4
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
Cisco » 1100-4p Integrated Services Router » Version: N/A

cpe:2.3:h:cisco:1100-4p_integrated_services_router:-
Cisco » 1100-8p Integrated Services Router » Version: N/A

cpe:2.3:h:cisco:1100-8p_integrated_services_router:-
Cisco » 1101-4p Integrated Services Router » Version: N/A

cpe:2.3:h:cisco:1101-4p_integrated_services_router:-
Cisco » 1109-4p Integrated Services Router » Version: N/A

cpe:2.3:h:cisco:1109-4p_integrated_services_router:-
Cisco » 4321 Integrated Services Router » Version: N/A

cpe:2.3:h:cisco:4321_integrated_services_router:-
Cisco » 4331 Integrated Services Router » Version: N/A

cpe:2.3:h:cisco:4331_integrated_services_router:-
Cisco » 4351 Integrated Services Router » Version: N/A

cpe:2.3:h:cisco:4351_integrated_services_router:-
Cisco » 4451-X Integrated Services Router » Version: N/A

cpe:2.3:h:cisco:4451-x_integrated_services_router:-
Cisco » 4461 Integrated Services Router » Version: N/A

cpe:2.3:h:cisco:4461_integrated_services_router:-
Cisco » Csr 1000v » Version: N/A

cpe:2.3:h:cisco:csr_1000v:-

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2021-1236

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