OnlyFm252
Windows IKE Extension

CVE-2022-34720 — Windows Internet Key Exchange (IKE) Extension Denial of Service Vulnerability

Important CVSS 7.5 EPSS 0.03006 2022-09 archive

Executive Summary

None

Overview

7.5
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Denial of Service
Released Sep 13 2022
Last Updated Sep 13 2022
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.03006 — 0.85654 percentile
NVD CVSS 7.5 HIGH — matches MSRC

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
None
INTEGRITY
None
AVAILABILITY
High
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 6.5

EPSS Score

0.03006
probability of exploitation in the next 30 days
0.85654 percentile - updated 2026-06-21
View on FIRST.org

Affected Products

22 affected products
Product KB Article Severity Impact Restart Required
Windows 10 for 32-bit Systems 5017327 (Security Update) Important Denial of Service Yes
Windows 10 for x64-based Systems 5017327 (Security Update) Important Denial of Service Yes
Windows 10 Version 1607 for 32-bit Systems 5017305 (Security Update) Important Denial of Service Yes
Windows 10 Version 1607 for x64-based Systems 5017305 (Security Update) Important Denial of Service Yes
Windows 10 Version 1809 for 32-bit Systems 5017315 (Security Update) Important Denial of Service Yes
Windows 10 Version 1809 for ARM64-based Systems 5017315 (Security Update) Important Denial of Service Yes
Windows 10 Version 1809 for x64-based Systems 5017315 (Security Update) Important Denial of Service Yes
Windows 10 Version 20H2 for 32-bit Systems 5017308 (Security Update) Important Denial of Service Yes
Windows 10 Version 20H2 for ARM64-based Systems 5017308 (Security Update) Important Denial of Service Yes
Windows 10 Version 21H1 for 32-bit Systems 5017308 (Security Update) Important Denial of Service Yes
Windows 10 Version 21H1 for ARM64-based Systems 5017308 (Security Update) Important Denial of Service Yes
Windows 10 Version 21H1 for x64-based Systems 5017308 (Security Update) Important Denial of Service Yes
Windows 10 Version 21H2 for 32-bit Systems 5017308 (Security Update) Important Denial of Service Yes
Windows 10 Version 21H2 for ARM64-based Systems 5017308 (Security Update) Important Denial of Service Yes
Windows 10 Version 21H2 for x64-based Systems 5017308 (Security Update) Important Denial of Service Yes
Windows 11 version 21H2 for ARM64-based Systems 5017328 (Security Update) Important Denial of Service Yes
Windows 11 version 21H2 for x64-based Systems 5017328 (Security Update) Important Denial of Service Yes
Windows 7 for 32-bit Systems Service Pack 1 5017361 (Monthly Rollup) 5017373 (Security Only) Important Denial of Service 5016676 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C 6.1.7601.26115 Yes 5017361 5017373 Windows 7 for x64-based Systems Service Pack 1 5017361 (Monthly Rollup) 5017373 (Security Only) Important Denial of Service 5016676 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C 6.1.7601.26115 Yes 5017361 5017373 Windows 8.1 for 32-bit systems 5017367 (Monthly Rollup) 5017365 (Security Only) Important Denial of Service 5016681 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C 6.3.9600.20571 Yes 5017367 5017365 Windows 8.1 for x64-based systems 5017367 (Monthly Rollup) 5017365 (Security Only) Important Denial of Service 5016681 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C 6.3.9600.20571 Yes 5017367 5017365 Windows RT 8.1 5017367 (Monthly Rollup) Important Denial of Service Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 5017358 (Monthly Rollup) 5017371 (Security Only) Important Denial of Service 5016669 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C 6.0.6003.21666 Yes 5017358 5017371 Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 5017358 (Monthly Rollup) 5017371 (Security Only) Important Denial of Service 5016669 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C 6.0.6003.21666 Yes 5017358 5017371 Windows Server 2008 for x64-based Systems Service Pack 2 5017358 (Monthly Rollup) 5017371 (Security Only) Important Denial of Service 5016669 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C 6.0.6003.21666 Yes 5017358 5017371 Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 5017358 (Monthly Rollup) 5017371 (Security Only) Important Denial of Service 5016669 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C 6.0.6003.21666 Yes 5017358 5017371 Windows Server 2008 R2 for x64-based Systems Service Pack 1 5017361 (Monthly Rollup) 5017373 (Security Only) Important Denial of Service 5016676 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C 6.1.7601.26115 Yes 5017361 5017373 Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 5017361 (Monthly Rollup) 5017373 (Security Only) Important Denial of Service 5016676 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C 6.1.7601.26115 Yes 5017361 5017373 Windows Server 2012 5017370 (Monthly Rollup) 5017377 (Security Only) Important Denial of Service 5016672 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C 6.2.9200.23865 Yes 5017370 5017377 Windows Server 2012 (Server Core installation) 5017370 (Monthly Rollup) 5017377 (Security Only) Important Denial of Service 5016672 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C 6.2.9200.23865 Yes 5017370 5017377 Windows Server 2012 R2 5017367 (Monthly Rollup) 5017365 (Security Only) Important Denial of Service 5016681 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C 6.3.9600.20571 Yes 5017367 5017365 Windows Server 2012 R2 (Server Core installation) 5017367 (Monthly Rollup) 5017365 (Security Only) Important Denial of Service 5016681 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C 6.3.9600.20571 Yes 5017367 5017365 Windows Server 2016 5017305 (Security Update) Important Denial of Service Yes
Windows Server 2016 (Server Core installation) 5017305 (Security Update) Important Denial of Service Yes
Windows Server 2019 5017315 (Security Update) Important Denial of Service Yes
Windows Server 2019 (Server Core installation) 5017315 (Security Update) Important Denial of Service Yes

Patches

6 patches
Article Type Restart
5017327 Security Update Yes
5017305 Security Update Yes
5017315 Security Update Yes
5017308 Security Update Yes
5017328 Security Update Yes
5017367 Monthly Rollup Yes

Known Exploits

Acknowledgments

Yuki Chen

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