Is CVE-2021-25220 actively exploited?

CVE-2021-25220 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2021-25220?

CVE-2021-25220 has a CVSS score of 6.8 (MEDIUM severity). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N.

How do I patch CVE-2021-25220?

Patch guidance is available from isc security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2021-25220.

Which products are affected by CVE-2021-25220?

130 products: isc bind, isc bind, isc bind, isc bind, isc bind, and 125 more.

CVE-2021-25220 - remediation guidance & executive summary

Description

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.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N
Attack Vector: network
Complexity: low
Privileges: high
User Action: none
Scope: changed
Confidentiality: none
Integrity: high
Availability: none
Weaknesses: CWE-444

Metadata

Primary Vendor: ISC
Published: 3/23/2022
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

isc : bindisc : bindisc : bindisc : bindisc : bindfedoraproject : fedorafedoraproject : fedorafedoraproject : fedoranetapp : h300s_firmwarenetapp : h500s_firmwarenetapp : h700s_firmwarenetapp : h300e_firmwarenetapp : h500e_firmwarenetapp : h700e_firmwarenetapp : h410s_firmwarenetapp : h410c_firmwaresiemens : sinec_inssiemens : sinec_inssiemens : sinec_insjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junosjuniper : junos

Remediation Guidance

Executive Summary

View on NIST NVD