CVE-2022-21984
published 2022-02-09CVE-2022-21984: Windows DNS Server Remote Code Execution Vulnerability
PriorityP260high8.8CVSS 3.1
AVNACLPRLUINSUCHIHAH
EPSS
4.80%
91.9th percentile
Windows DNS Server Remote Code Execution Vulnerability
Affected
28 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10_version_1909 | >= 10.0.0 < 10.0.18363.2094 | 10.0.18363.2094 |
| microsoft | windows_10_version_20h2 | >= 10.0.0 < 10.0.19042.1526 | 10.0.19042.1526 |
| microsoft | windows_10_version_21h1 | >= 10.0.0 < 10.0.19043.1526 | 10.0.19043.1526 |
| microsoft | windows_10_version_21h2 | >= 10.0.19043.0 < 10.0.19044.1526 | 10.0.19044.1526 |
| microsoft | windows_11_version_21h2 | >= 10.0.0 < 10.0.22000.493 | 10.0.22000.493 |
| microsoft | windows_server | — | — |
| microsoft | windows_server | — | — |
| microsoft | windows_server_2022 | >= 10.0.20348.0 < 10.0.20348.524 | 10.0.20348.524 |
| microsoft | windows_server_version_20h2 | >= 10.0.0 < 10.0.19042.1526 | 10.0.19042.1526 |
| msrc | windows_10_version_1909_for_32-bit_systems | — | — |
| msrc | windows_10_version_1909_for_arm64-based_systems | — | — |
| msrc | windows_10_version_1909_for_x64-based_systems | — | — |
| msrc | windows_10_version_20h2_for_32-bit_systems | — | — |
| msrc | windows_10_version_20h2_for_arm64-based_systems | — | — |
| msrc | windows_10_version_21h1_for_32-bit_systems | — | — |
| msrc | windows_10_version_21h1_for_arm64-based_systems | — | — |
| msrc | windows_10_version_21h1_for_x64-based_systems | — | — |
| msrc | windows_10_version_21h2_for_32-bit_systems | — | — |
| msrc | windows_10_version_21h2_for_arm64-based_systems | — | — |
| msrc | windows_10_version_21h2_for_x64-based_systems | — | — |
| msrc | windows_11_version_21h2_for_arm64-based_systems | — | — |
Detection & IOCsextracted from sources · hover to see the quote
- →Target service is Windows DNS Server — only instances with dynamic updates enabled are vulnerable to this RCE. ↗
- →Confirm vulnerable role on target host: 'Role: DNS Server' must be present for exploitation to be possible. ↗
- →Use Qualys QQL query to identify all impacted hosts for CVE-2022-21984 and related February 2022 Patch Tuesday vulnerabilities. ↗
- ·Dynamic updates must be enabled on the Windows DNS Server for the vulnerability to be exploitable — this is described as a relatively common configuration. ↗
- ·Successful exploitation allows an attacker to fully take over DNS and execute code with elevated privileges. ↗
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.06.0MEDIUMAV:N/AC:M/Au:S/C:P/I:P/A:P
vendor_msrc8.8HIGH
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GHSA
GHSA-g66q-qpr4-q7x8: Windows DNS Server Remote Code Execution Vulnerability
ghsa_unreviewed·2022-02-10
CVE-2022-21984 [HIGH] GHSA-g66q-qpr4-q7x8: Windows DNS Server Remote Code Execution Vulnerability
Windows DNS Server Remote Code Execution Vulnerability.
Microsoft
Windows DNS Server Remote Code Execution Vulnerability
vendor_msrc·2022-02-08·CVSS 8.8
CVE-2022-21984 [HIGH] Windows DNS Server Remote Code Execution Vulnerability
Windows DNS Server Remote Code Execution Vulnerability
Role: DNS Server: Role: DNS Server
Microsoft: Microsoft
Customer Action Required: Yes
Impact: Remote Code Execution
Exploit Status: Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely;Older Software Release:Exploitation Less Likely;DOS:N/A
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5010345
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5010342
Reference: https://support.microsoft.com/help/5010342
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5010354
Reference: https://support.microsoft.com/help/5010354
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5010386
Remediation: The following mitiga
No detection rules found.
No public exploits indexed.
Qualys
Microsoft & Adobe Patch Tuesday (February 2022) – Microsoft 70 Vulnerabilities with 0 Critical; Adobe 17 Vulnerabilities with 5 Critical | Qualys
blogs_qualys·2022-02-08·CVSS 8.8
[HIGH] Microsoft & Adobe Patch Tuesday (February 2022) – Microsoft 70 Vulnerabilities with 0 Critical; Adobe 17 Vulnerabilities with 5 Critical | Qualys
#### Table of Contents
- Microsoft Patch Tuesday February 2022
- Adobe Patch Tuesday February 2022
- Discover and Prioritize Patch Tuesday Vulnerabilities in VMDR
- Respond by Patching
- Webinar Series: This Month in Vulnerabilities & Patches
- About Patch Tuesday
- Contributor
## Microsoft Patch Tuesday – February 2022
Microsoft addresses 70 vulnerabilities in their February 2022 Patch Tuesday release. While none of the vulnerabilities in this month’s Microsoft release cycle have been assigned as critical risk, several have been given a High risk rating (CVSSv3.1 score of 7.0 – 8.9). As of this writing, none of this month’s list of vulnerabilities is known to be exploited in the wild.
Microsoft has fixed problems in their software including Remote Code Execution (RCE) vulnerabilities,
Qualys
Microsoft & Adobe Patch Tuesday (February 2022) – Microsoft 70 Vulnerabilities with 0 Critical; Adobe 17 Vulnerabilities with 5 Critical
blogs_qualys·2022-02-08·CVSS 8.8
[HIGH] Microsoft & Adobe Patch Tuesday (February 2022) – Microsoft 70 Vulnerabilities with 0 Critical; Adobe 17 Vulnerabilities with 5 Critical
## Table of Contents
Microsoft Patch Tuesday February 2022
Adobe Patch Tuesday February 2022
Discover and Prioritize Patch Tuesday Vulnerabilities in VMDR
Respond by Patching
Webinar Series: This Month in Vulnerabilities & Patches
About Patch Tuesday
Contributor
## Microsoft Patch Tuesday – February 2022
Microsoft addresses 70 vulnerabilities in their February 2022 Patch Tuesday release. While none of the vulnerabilities in this month’s Microsoft release cycle have been assigned as critical risk, several have been given a High risk rating (CVSSv3.1 score of 7.0 – 8.9). As of this writing, none of this month’s list of vulnerabilities is known to be exploited in the wild.
Microsoft has fixed problems in their software including Remote Code Execution (RCE) vulnerabilities, a former
Crowdstrike
February 2022 Patch Tuesday: Updates and Analysis
blogs_crowdstrike·CVSS 7.5
CVE-2026-20929 [HIGH] February 2022 Patch Tuesday: Updates and Analysis
STARDUST CHOLLIMA Likely Compromises Axios npm Package Apr 01, 2026
Falcon for IT Supports Windows Secure Boot Certificate Lifecycle Management Apr 01, 2026
Detecting CVE-2026-20929: Kerberos Authentication Relay via CNAME Abuse Mar 31, 2026
How Charlotte AI AgentWorks Fuels Security's Agentic Ecosystem Mar 25, 2026
STARDUST CHOLLIMA Likely Compromises Axios npm Package Apr 01, 2026
Falcon for IT Supports Windows Secure Boot Certificate Lifecycle Management Apr 01, 2026
Detecting CVE-2026-20929: Kerberos Authentication Relay via CNAME Abuse Mar 31, 2026
How Charlotte AI AgentWorks Fuels Security's Agentic Ecosystem Mar 25, 2026
Video Highlights the 4 Key Steps to Successful Incident Response Dec 02, 2019
Helping Non-Security Stakeholders Understand ATT&CK in 10 Minutes or Less [VI
Crowdstrike
February 2022 Patch Tuesday: Updates and Analysis
blogs_crowdstrike·CVSS 7.5
CVE-2026-20929 [HIGH] February 2022 Patch Tuesday: Updates and Analysis
How CrowdStrike is Accelerating Exposure Evaluation as Adversaries Gain Speed Apr 06, 2026
STARDUST CHOLLIMA Likely Compromises Axios npm Package Apr 01, 2026
Falcon for IT Supports Windows Secure Boot Certificate Lifecycle Management Apr 01, 2026
Detecting CVE-2026-20929: Kerberos Authentication Relay via CNAME Abuse Mar 31, 2026
How CrowdStrike is Accelerating Exposure Evaluation as Adversaries Gain Speed Apr 06, 2026
STARDUST CHOLLIMA Likely Compromises Axios npm Package Apr 01, 2026
Falcon for IT Supports Windows Secure Boot Certificate Lifecycle Management Apr 01, 2026
Detecting CVE-2026-20929: Kerberos Authentication Relay via CNAME Abuse Mar 31, 2026
Video Highlights the 4 Key Steps to Successful Incident Response Dec 02, 2019
Helping Non-Security Stakeholders Understand AT
2022-02-09
Published