CVE-2021-25220
high-risk
Published 2022-03-23
BIND 9.11.0 -> 9.11.36 9.12.0 -> 9.16.26 9.17.0 -> 9.18.0 BIND Supported Preview Editions: 9.11.4-S1 -> 9.11.36-S1 9.16.8-S1 -> 9.16.26-S1 Versions of BIND 9 earlier than those shown - back to 9.1.0, including Supported Preview Editions - are also believed to be affected but have not been tested as they are EOL. The cache could become poisoned with incorrect records leading to queries being made to the wrong servers, which might also result in false information being returned to clients.
Do I need to act?
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0.10% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.8/10
Medium
NETWORK
/ LOW complexity
Affected Products (20)
Affected Vendors
References (20)
Mitigation
https://kb.isc.org/v1/docs/cve-2021-25220
Third Party Advisory
https://security.gentoo.org/glsa/202210-25
Third Party Advisory
https://security.netapp.com/advisory/ntap-20220408-0001/
Mitigation
https://kb.isc.org/v1/docs/cve-2021-25220
Third Party Advisory
https://security.gentoo.org/glsa/202210-25
Third Party Advisory
https://security.netapp.com/advisory/ntap-20220408-0001/
57
/ 100
high-risk
Severity
25/34 · High
Exploitability
0/34 · Minimal
Exposure
32/34 · Critical