CVE-2023-21758
📛 CVE Title
Windows Internet Key Exchange (IKE) Extension Denial of Service Vulnerability
Description
Windows Internet Key Exchange (IKE) Extension Denial of Service Vulnerability
Overview
- State
- PUBLISHED
- Assigner (CNA)
- microsoft
- CVSS severity
- HIGH
- CVSS score
- 7.5 / 10
- 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- Effective score
- 7.5 / 10 HIGH source: CNA overview
- MSRC score
- 7.5 / 10 HIGH MS rating: Important · Denial of Service
- CWE(s)
-
CWE-476 - Reserved
- 2022-12-13
- Published
- 2023-01-10 08:00 UTC
- Last updated
- 2023-01-10 08:00 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2023/21xxx/CVE-2023-21758.json
- Linked Threat
- CVE-2023-21758 — Windows Internet Key Exchange (IKE) Extension Denial of Service Vulnerability
European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-2023-25925 - Assigner
- microsoft
- Published
- Jan 10, 2023, 12:00:00 AM
- Updated
- Jan 1, 2025, 12:36:03 AM
- EUVD base score (CVSS 3.1)
-
7.5 / 10
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 - EUVD-reported EPSS
- 51.6900
- Vendors
- Microsoft
- Products
-
Windows 10 Version 21H2 (10.0.19043.0 <10.0.19044.2486)Windows 10 Version 1507 (10.0.10240.0 <10.0.10240.19685)Windows 10 Version 20H2 (10.0.0 <10.0.19042.2486)Windows Server 2022 (10.0.20348.0 <10.0.20348.1487)Windows 10 Version 1809 (10.0.0 <10.0.17763.3887)Windows 11 version 21H2 (10.0.0 <10.0.22000.1455)Windows 10 Version 22H2 (10.0.19045.0 <10.0.19045.2486)Windows Server 2019 (Server Core installation) (10.0.17763.0 <10.0.17763.3887)Windows 10 Version 1607 (10.0.14393.0 <10.0.14393.5648)Windows 11 version 22H2 (10.0.22621.0 <10.0.22621.1105)Windows Server 2019 (10.0.17763.0 <10.0.17763.3887)Windows Server 2016 (Server Core installation) (10.0.14393.0 <10.0.14393.5648)Windows Server 2016 (10.0.14393.0 <10.0.14393.5648)Windows 10 Version 1809 (10.0.17763.0 <10.0.17763.3887)
- Aliases
-
GHSA-qqg4-gm3f-2r2x
ENISA description: Windows Internet Key Exchange (IKE) Extension Denial of Service Vulnerability
EUVD references (1)
Microsoft Security Response Center MSRC
Microsoft's vendor-authoritative record from the Security Update Guide — its own CVSS score, impact, severity rating, exploit assessment, and KB-article fixes. Refreshed 2026-08-12 01:00 UTC (source: CVRF).
- MS severity
- Important
- Impact
- Denial of Service
- MS CVSS base score
- 7.5 / 10 (temporal 6.5)
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 - Exploit assessment
- Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely;Older Software Release:Exploitation Less Likely;DOS:N/A
- Release
- 2023-Jan
Microsoft remediations / KB articles (10)
- 5022286 — Vendor Fix / Security Update (fixed build 10.0.17763.3887)
- 5022286 — Update
- 5022291 — Vendor Fix / Security Update (fixed build 10.0.20348.1487)
- 5022282 — Vendor Fix / Security Update (fixed build 10.0.19042.2486)
- 5022282 — Update
- 5022287 — Vendor Fix / Security Update (fixed build 10.0.22000.1455)
- 5022303 — Vendor Fix / Security Update (fixed build 10.0.22621.1105)
- 5022303 — Update
- 5022297 — Vendor Fix / Security Update (fixed build 10.0.10240.19685)
- 5022289 — Vendor Fix / Security Update (fixed build 10.0.14393.5648)
Affected products (14)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| Microsoft | Windows 10 Version 1809 |
10.0.17763.0 (affected)
|
32-bit Systems, x64-based Systems |
| Microsoft | Windows 10 Version 1809 |
10.0.0 (affected)
|
ARM64-based Systems |
| Microsoft | Windows Server 2019 |
10.0.17763.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2019 (Server Core installation) |
10.0.17763.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2022 |
10.0.20348.0 (affected)
|
x64-based Systems |
| Microsoft | Windows 10 Version 20H2 |
10.0.0 (affected)
|
32-bit Systems, ARM64-based Systems |
| Microsoft | Windows 11 version 21H2 |
10.0.0 (affected)
|
x64-based Systems, ARM64-based Systems |
| Microsoft | Windows 10 Version 21H2 |
10.0.19043.0 (affected)
|
32-bit Systems, ARM64-based Systems, x64-based Systems |
| Microsoft | Windows 11 version 22H2 |
10.0.22621.0 (affected)
|
ARM64-based Systems, x64-based Systems |
| Microsoft | Windows 10 Version 22H2 |
10.0.19045.0 (affected)
|
x64-based Systems, ARM64-based Systems, 32-bit Systems |
| Microsoft | Windows 10 Version 1507 |
10.0.10240.0 (affected)
|
32-bit Systems, x64-based Systems |
| Microsoft | Windows 10 Version 1607 |
10.0.14393.0 (affected)
|
32-bit Systems, x64-based Systems |
| Microsoft | Windows Server 2016 |
10.0.14393.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2016 (Server Core installation) |
10.0.14393.0 (affected)
|
x64-based Systems |
Vendor references (1)
References embedded in the original CVE record by the assigning CNA.
Web references (18)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
- 5022282 msrc
- 5022286 msrc
- 5022287 msrc
- 5022289 msrc
- 5022291 msrc
- 5022297 msrc
- 5022303 msrc
- MSRC update guide: CVE-2023-21758 msrc
- https://support.microsoft.com/help/5022303 rapid7:support.microsoft.com
- http://cwe.mitre.org/data/definitions/476.html rapid7:cwe.mitre.org
- https://www.cve.org/CVERecord?id=CVE-2023-21758 rapid7:www.cve.org
- https://attackerkb.com/topics/CVE-2023-21758 rapid7:attackerkb.com
- https://support.microsoft.com/help/5022282 rapid7:support.microsoft.com
- https://support.microsoft.com/help/5022286 rapid7:support.microsoft.com
- https://support.microsoft.com/help/5022287 rapid7:support.microsoft.com
- https://support.microsoft.com/help/5022289 rapid7:support.microsoft.com
- https://support.microsoft.com/help/5022291 rapid7:support.microsoft.com
- https://support.microsoft.com/help/5022297 rapid7:support.microsoft.com
Remediations (16)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:msrc.microsoft.com
Access Microsoft Security Response Center's guide to address vulnerabilities, manage security risks, and keep your systems protected with the latest updates.
2026-06-04 09:44 UTC -
web:jumpcloud.com
Master patch compliance with this technical guide covering vulnerability scanning, deployment processes, key metrics, and remediation best practices.
2026-06-04 09:44 UTC -
web:portal.msrc.microsoft.com
The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.
2026-06-04 09:44 UTC -
web:support.microsoft.com
Provides Windows client guidance for IT Pros to protect against speculative execution side-channel vulnerabilities.
2026-06-04 09:44 UTC -
web:tuxcare.com
It includes discovering vulnerabilities, evaluating their potential impact, prioritizing remediation efforts (including patching), and confirming the fixes. Patch Management Patch management, on the other hand, is the act of applying the necessary updates to fix known vulnerabilities. It's a critical component of vulnerability management.
2026-06-04 09:44 UTC -
web:learn.microsoft.com
Remediate security weaknesses discovered through security recommendations, and create exceptions if needed, in Defender Vulnerability Management.
2026-06-04 09:44 UTC -
web:www.linkedin.com
Microsoft Security Response Center has issued an emergency mitigation for a newly disclosed BitLocker bypass vulnerability known as "YellowKey," after security researchers publicly released ...
2026-05-22 05:46 UTC -
web:www.notebookcheck.net
Microsoft released mitigation steps for YellowKey ( CVE -2026-45585), a BitLocker bypass that grants physical attackers access to encrypted Windows drives.
2026-05-22 05:46 UTC -
web:www.securityweek.com
Microsoft has announced mitigations for CVE -2026-45585, a BitLocker bypass triggered via FsTx in Windows Recovery.
2026-05-22 05:46 UTC -
web:cybersecuritynews.com
No patch has been released yet; Microsoft has instead issued a multi-step manual mitigation guide while a formal security update is prepared. Windows BitLocker Security Bypass The vulnerability originates in WinRE's handling of the BootExecute registry value under HKLM\ControlSet001\Control\Session Manager.
2026-05-22 05:46 UTC -
web:zecurit.com
Get the complete breakdown of Microsoft's May 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .
2026-05-22 05:46 UTC -
web:knowledge.broadcom.com
8. Reporting Compliance for Patch Management: Found on the Console > Reports > All Reports > Software > Patch Management > Compliance Run the Windows Compliance by Bulletin, Computer or Update to view vulnerabilities in the environment. These reports can be found in Home> Patch Management> Compliance and Remediation Caution!
2026-05-22 05:46 UTC -
web:portal.msrc.microsoft.com
The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.
2026-05-22 05:46 UTC -
web:windowsreport.com
The newly exposed Windows security flaw, dubbed "YellowKey," has become a major headache for Microsoft. After the exploit details leaked publicly alongside a working proof-of-concept, the company has now rushed out official mitigation guidance while it prepares a permanent fix . The vulnerability reportedly targets BitLocker-protected systems and could allow attackers direct access to ...
2026-05-22 05:46 UTC -
web:www.cve.org
At cve .org, we provide the authoritative reference method for publicly known information-security vulnerabilities and exposures
2026-05-22 05:46 UTC -
web:www.helpnetsecurity.com
Microsoft is working on a fix for CVE -2026-45585 (aka "Yellowkey"), a vulnerability that can be used to bypass Windows' BitLocker protection.
2026-05-22 05:46 UTC
AI Forensic Analysis
Only Available for Registered Users. Sign in to view.
Raw JSON
The full cvelistV5 record. Download as CVE-2023-21758.json.
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-21758",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-07-19T18:52:50.918671Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-07-19T18:53:00.662Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2024-08-02T09:51:49.934Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"name": "Windows Internet Key Exchange (IKE) Extension Denial of Service Vulnerability",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21758"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"platforms": [
"32-bit Systems",
"x64-based Systems"
],
"product": "Windows 10 Version 1809",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.17763.3887",
"status": "affected",
"version": "10.0.17763.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"ARM64-based Systems"
],
"product": "Windows 10 Version 1809",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.17763.3887",
"status": "affected",
"version": "10.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server 2019",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.17763.3887",
"status": "affected",
"version": "10.0.17763.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server 2019 (Server Core installation)",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.17763.3887",
"status": "affected",
"version": "10.0.17763.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server 2022",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.20348.1487",
"status": "affected",
"version": "10.0.20348.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"32-bit Systems",
"ARM64-based Systems"
],
"product": "Windows 10 Version 20H2",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.19042.2486",
"status": "affected",
"version": "10.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems",
"ARM64-based Systems"
],
"product": "Windows 11 version 21H2",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.22000.1455",
"status": "affected",
"version": "10.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"32-bit Systems",
"ARM64-based Systems",
"x64-based Systems"
],
"product": "Windows 10 Version 21H2",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.19044.2486",
"status": "affected",
"version": "10.0.19043.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"ARM64-based Systems",
"x64-based Systems"
],
"product": "Windows 11 version 22H2",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.22621.1105",
"status": "affected",
"version": "10.0.22621.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems",
"ARM64-based Systems",
"32-bit Systems"
],
"product": "Windows 10 Version 22H2",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.19045.2486",
"status": "affected",
"version": "10.0.19045.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"32-bit Systems",
"x64-based Systems"
],
"product": "Windows 10 Version 1507",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.10240.19685",
"status": "affected",
"version": "10.0.10240.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"32-bit Systems",
"x64-based Systems"
],
"product": "Windows 10 Version 1607",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.14393.5648",
"status": "affected",
"version": "10.0.14393.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server 2016",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.14393.5648",
"status": "affected",
"version": "10.0.14393.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server 2016 (Server Core installation)",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.14393.5648",
"status": "affected",
"version": "10.0.14393.0",
"versionType": "custom"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*",
"versionEndExcluding": "10.0.17763.3887",
"versionStartIncluding": "10.0.17763.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:arm64:*",
"versionEndExcluding": "10.0.17763.3887",
"versionStartIncluding": "10.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*",
"versionEndExcluding": "10.0.17763.3887",
"versionStartIncluding": "10.0.17763.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*",
"versionEndExcluding": "10.0.17763.3887",
"versionStartIncluding": "10.0.17763.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*",
"versionEndExcluding": "10.0.20348.1487",
"versionStartIncluding": "10.0.20348.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_20H2:*:*:*:*:*:*:x86:*",
"versionEndExcluding": "10.0.19042.2486",
"versionStartIncluding": "10.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:microsoft:windows_11_21H2:*:*:*:*:*:*:x64:*",
"versionEndExcluding": "10.0.22000.1455",
"versionStartIncluding": "10.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_21H2:*:*:*:*:*:*:x86:*",
"versionEndExcluding": "10.0.19044.2486",
"versionStartIncluding": "10.0.19043.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:microsoft:windows_11_22H2:*:*:*:*:*:*:arm64:*",
"versionEndExcluding": "10.0.22621.1105",
"versionStartIncluding": "10.0.22621.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_22H2:*:*:*:*:*:*:x64:*",
"versionEndExcluding": "10.0.19045.2486",
"versionStartIncluding": "10.0.19045.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x86:*",
"versionEndExcluding": "10.0.10240.19685",
"versionStartIncluding": "10.0.10240.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*",
"versionEndExcluding": "10.0.14393.5648",
"versionStartIncluding": "10.0.14393.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*",
"versionEndExcluding": "10.0.14393.5648",
"versionStartIncluding": "10.0.14393.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*",
"versionEndExcluding": "10.0.14393.5648",
"versionStartIncluding": "10.0.14393.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"datePublic": "2023-01-10T08:00:00.000Z",
"descriptions": [
{
"lang": "en-US",
"value": "Windows Internet Key Exchange (IKE) Extension Denial of Service Vulnerability"
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.5,
"baseSeverity": "HIGH",
"vectorString": "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",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en-US",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-476",
"description": "CWE-476: NULL Pointer Dereference",
"lang": "en-US",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-01-01T00:36:03.961Z",
"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"shortName": "microsoft"
},
"references": [
{
"name": "Windows Internet Key Exchange (IKE) Extension Denial of Service Vulnerability",
"tags": [
"vendor-advisory"
],
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21758"
}
],
"title": "Windows Internet Key Exchange (IKE) Extension Denial of Service Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"assignerShortName": "microsoft",
"cveId": "CVE-2023-21758",
"datePublished": "2023-01-10T00:00:00.000Z",
"dateReserved": "2022-12-13T00:00:00.000Z",
"dateUpdated": "2025-01-01T00:36:03.961Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}