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nvd[email protected]NVD:CVE-2020-27721
HistoryDec 24, 2020 - 3:15 p.m.

CVE-2020-27721

2020-12-2415:15:12
web.nvd.nist.gov

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.001 Low

EPSS

Percentile

42.6%

In versions 16.0.0-16.0.0.1, 15.1.0-15.1.1, 14.1.0-14.1.3, 13.1.0-13.1.3.5, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2, in a BIG-IP DNS / BIG-IP LTM GSLB deployment, under certain circumstances, the BIG-IP DNS system may stop using a BIG-IP LTM virtual server for DNS response.

Affected configurations

NVD
Node
f5big-ip_domain_name_systemRange11.6.111.6.5
OR
f5big-ip_domain_name_systemRange12.1.012.1.5
OR
f5big-ip_domain_name_systemRange13.1.013.1.3
OR
f5big-ip_domain_name_systemRange14.1.014.1.3.1
OR
f5big-ip_domain_name_systemRange15.0.015.1.2
OR
f5big-ip_domain_name_systemRange16.0.016.0.1
OR
f5big-ip_global_traffic_managerRange11.6.111.6.5
OR
f5big-ip_global_traffic_managerRange12.1.012.1.5
OR
f5big-ip_global_traffic_managerRange13.1.013.1.3
OR
f5big-ip_global_traffic_managerRange14.1.014.1.3.1
OR
f5big-ip_global_traffic_managerRange15.0.015.1.2
OR
f5big-ip_global_traffic_managerRange16.0.016.0.1

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

0.001 Low

EPSS

Percentile

42.6%

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