High severity · published Sep 14, 2021
CVE-2021-23032
On version 16.x before 16.1.0, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.4, and all versions of 13.1.x and 12.1.x, when a BIG-IP DNS system is configured with non-default Wide…
7.5
CVSS
0.9%
EPSS
No
On KEV
Description
On version 16.x before 16.1.0, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.4, and all versions of 13.1.x and 12.1.x, when a BIG-IP DNS system is configured with non-default Wide IP and pool settings, undisclosed DNS responses can cause the Traffic Management Microkernel (TMM) to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 61% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BD
Big-ip Domain Name System · F5
12.1.0 through 12.1.6; 13.1.0 through 13.1.4; 14.1.0 before 14.1.4.4; 15.1.0 before 15.1.3.1; 16.0.0 before 16.1.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-23032
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-23032
Vendor Advisory
https://support.f5.com/csp/article/K45407662
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