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CVE-2026-33824Windows Internet Key Exchange (IKE) Service Extensions Remote Code Execution Vulnerability
Double free in Windows IKE Extension allows an unauthorized attacker to execute code over a network.
9.8 CRITICALEPSS 77.05%⚡ Known Exploited (CISA KEV)NVD: Analyzed
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 9.8 | CRITICAL | 3.1microsoft (CNA) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 9.8 | CRITICAL | 3.1microsoft (CNA) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C |
CISA required action
⚡ Known exploited · remediation due Aug 21, 2026
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Details
- CVE ID
- CVE-2026-33824
- Status
- Analyzed
- Assigner (CNA)
- microsoft
- Published
- Apr 14, 2026
- Last modified
- 2026-10-15 15:53 UTC
- Weaknesses
- CWE-415 · Double Free
Affected Products
As published by the CNA in the CVE record.
MicrosoftWindows 10 Version 16071 version range
- 10.0.14393.0 before 10.0.14393.9060
MicrosoftWindows 10 Version 18091 version range
- 10.0.17763.0 before 10.0.17763.8644
MicrosoftWindows 10 Version 21H21 version range
- 10.0.19044.0 before 10.0.19044.7184
MicrosoftWindows 10 Version 22H21 version range
- 10.0.19045.0 before 10.0.19045.7184
MicrosoftWindows 11 version 23H21 version range
- 10.0.22631.0 before 10.0.22631.6936
MicrosoftWindows 11 Version 23H21 version range
- 10.0.22631.0 before 10.0.22631.6936
MicrosoftWindows 11 Version 24H21 version range
- 10.0.26100.0 before 10.0.26100.8246
MicrosoftWindows 11 Version 25H21 version range
- 10.0.26200.0 before 10.0.26200.8246
MicrosoftWindows 11 version 26H11 version range
- 10.0.28000.0 before 10.0.28000.1836
MicrosoftWindows Server 20161 version range
- 10.0.14393.0 before 10.0.14393.9060
MicrosoftWindows Server 2016 (Server Core installation)1 version range
- 10.0.14393.0 before 10.0.14393.9060
MicrosoftWindows Server 20191 version range
- 10.0.17763.0 before 10.0.17763.8644
MicrosoftWindows Server 2019 (Server Core installation)1 version range
- 10.0.17763.0 before 10.0.17763.8644
MicrosoftWindows Server 20221 version range
- 10.0.20348.0 before 10.0.20348.5020
MicrosoftWindows Server 2022, 23H2 Edition (Server Core installation)1 version range
- 10.0.25398.0 before 10.0.25398.2274
MicrosoftWindows Server 20251 version range
- 10.0.26100.0 before 10.0.26100.32690
MicrosoftWindows Server 2025 (Server Core installation)1 version range
- 10.0.26100.0 before 10.0.26100.32690