CVE-2022-34724

highpriority · track · 1EPSS 0.037 · 90 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

3.70% (90th) EPSS

CVSS 7.5 · high

Is it mine?

67 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · msrc_csaf

EPSS · scored 2026-10-28

Windows DNS Server Denial of Service Vulnerability

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedWindows Server 2008 R2 for x64-based Systems Service Pack 1msrc_csaf
6.1.7601.26115:Monthly Rollup:https://support.microsoft.com/help/5017361
https://support.microsoft.com/help/5017361
FixedWindows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)msrc_csaf
6.1.7601.26115:Monthly Rollup:https://support.microsoft.com/help/5017361
https://support.microsoft.com/help/5017361
FixedWindows Server 2008 for 32-bit Systems Service Pack 2msrc_csaf
6.0.6003.21666:Monthly Rollup:https://support.microsoft.com/help/5017358
https://support.microsoft.com/help/5017358
FixedWindows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)msrc_csaf
6.0.6003.21666:Monthly Rollup:https://support.microsoft.com/help/5017358
https://support.microsoft.com/help/5017358
FixedWindows Server 2008 for x64-based Systems Service Pack 2msrc_csaf
6.0.6003.21666:Monthly Rollup:https://support.microsoft.com/help/5017358
https://support.microsoft.com/help/5017358
FixedWindows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)msrc_csaf
6.0.6003.21666:Monthly Rollup:https://support.microsoft.com/help/5017358
https://support.microsoft.com/help/5017358
FixedWindows Server 2012msrc_csaf
6.2.9200.23865:Monthly Rollup:https://support.microsoft.com/help/5017370
https://support.microsoft.com/help/5017370
FixedWindows Server 2012 (Server Core installation)msrc_csaf
6.2.9200.23865:Monthly Rollup:https://support.microsoft.com/help/5017370
https://support.microsoft.com/help/5017370
FixedWindows Server 2012 R2msrc_csaf
6.3.9600.20571:Security Only:https://support.microsoft.com/help/5017365
https://support.microsoft.com/help/5017365
FixedWindows Server 2012 R2 (Server Core installation)msrc_csaf
6.3.9600.20571:Security Only:https://support.microsoft.com/help/5017365
https://support.microsoft.com/help/5017365
FixedWindows Server 2016msrc_csaf
10.0.14393.5356:Security Update:https://support.microsoft.com/help/5017305
https://support.microsoft.com/help/5017305
FixedWindows Server 2016 (Server Core installation)msrc_csaf
10.0.14393.5356:Security Update:https://support.microsoft.com/help/5017305
https://support.microsoft.com/help/5017305
FixedWindows Server 2019msrc_csaf
10.0.17763.3406:Security Update:https://support.microsoft.com/help/5017315
https://support.microsoft.com/help/5017315
FixedWindows Server 2019 (Server Core installation)msrc_csaf
10.0.17763.3406:Security Update:https://support.microsoft.com/help/5017315
https://support.microsoft.com/help/5017315
FixedWindows Server 2022msrc_csaf
10.0.20348.1006:Security Update:https://support.microsoft.com/help/5017316
https://support.microsoft.com/help/5017316
FixedWindows Server 2022 (Server Core installation)msrc_csaf
10.0.20348.1006:Security Update:https://support.microsoft.com/help/5017316
https://support.microsoft.com/help/5017316

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:Csecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · secure@microsoft.com USexploitability 3.9 · impact 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:Csecondary · Microsoft Security Response Center US

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20US

affected products (67)

Products and version ranges known to be affected.

Microsoft Windows Server 2008 R2 Service Pack 16.1.7601.0 → 6.1.7601.26115enisa_euvdEU
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation)6.1.7601.0 → 6.1.7601.26115enisa_euvdEU
Microsoft Windows Server 2008 Service Pack 26.0.6003.0 → 6.0.6003.21666enisa_euvdEU
Microsoft Windows Server 2008 Service Pack 2 (Server Core installation)6.0.6003.0 → 6.0.6003.21666enisa_euvdEU
Microsoft Windows Server 20126.2.9200.0 → 6.2.9200.23865enisa_euvdEU
Microsoft Windows Server 2012 (Server Core installation)6.2.9200.0 → 6.2.9200.23865enisa_euvdEU
Microsoft Windows Server 2012 R26.3.9600.0 → 6.3.9600.20571enisa_euvdEU
Microsoft Windows Server 2012 R2 (Server Core installation)6.3.9600.0 → 6.3.9600.20571enisa_euvdEU
Microsoft Windows Server 201610.0.14393.0 → 10.0.14393.5356enisa_euvdEU
Microsoft Windows Server 2016 (Server Core installation)10.0.14393.0 → 10.0.14393.5356enisa_euvdEU
Microsoft Windows Server 201910.0.17763.0 → 10.0.17763.3406enisa_euvdEU
Microsoft Windows Server 2019 (Server Core installation)10.0.17763.0 → 10.0.17763.3406enisa_euvdEU
Microsoft Windows Server 202210.0.20348.0 → 10.0.20348.1006enisa_euvdEU
Microsoft Corp Windows Server 2008 R2 Service Pack 1all versionsfstec_bduRU
Microsoft Corp Windows Server 2008 R2 Service Pack 1 (Server Core installation)all versionsfstec_bduRU
Microsoft Corp Windows Server 2008 Service Pack 2all versionsfstec_bduRU
Microsoft Corp Windows Server 2008 Service Pack 2 (Server Core Installation)all versionsfstec_bduRU
Microsoft Corp Windows Server 2012all versionsfstec_bduRU
Microsoft Corp Windows Server 2012 (Server Core installation)all versionsfstec_bduRU
Microsoft Corp Windows Server 2012 R2all versionsfstec_bduRU

showing 20 of 67

advisories (1)

Vendor and ecosystem advisories describing this.

msrc_CVE-2022-34724Windows DNS Server Denial of Service Vulnerability2022-09-13csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu msrc_csaf NVD CVE.org MITRE

published 2022-09-13modified 2026-06-17

references (6)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

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