CISA KEV Alert: CVE-2026-33824 — Microsoft Internet Key Exchange (IKE) Service...

Microsoft Internet Key Exchange (IKE) Service Extensions contains a double free vulnerability that could enable remote code execution. CISA has added CVE-2026-33824 (Microsoft Internet Key Exchange (IKE) Service Extensions) to the Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies required to remediate by 2026-08-21. Required action: 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.

Decision: Validate relevance and exposure using the cited source and internal evidence before treating this record as an incident, confirmed compromise, or customer-specific finding.

Vulnerability class: Command Injection. Assessment: Active exploitation is confirmed by the cited evidence; prioritize exposure confirmation and the authoritative remediation action.

This extract is escaped and rendered from the ingested source record; generated analysis is not presented as a source fact.

The source identifies command/code execution and a remotely reachable service context.

title: Web Service Spawning a Command Interpreter Related to CVE-2026-33824
id: dc3143d3-ecf8-5a06-bc44-d92b68131e31
status: experimental
description: Detects command interpreters spawned by common web-service processes. Requires product-specific parent-process
  tuning.
references:
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-33824
author: CYBERDUDEBIVASH Sentinel APEX Detection Engineering
date: '2026-08-18'
logsource:
  category: process_creation
detection:
  selection_parent:
    ParentImage|endswith:
    - \w3wp.exe
    - /httpd
    - /nginx
    - /java
  selection_child:
    Image|endswith:
    - \cmd.exe
    - \powershell.exe
    - /bin/sh
    - /bin/bash
  condition: selection_parent and selection_child
falsepositives:
- Documented administrative hooks
- Approved application maintenance
level: high
tags:
- attack.execution
- attack.t1059

// Web Service Spawning a Command Interpreter Related to CVE-2026-33824
// report: CDB-CTI-2026-80C15655868A
// DeviceProcessEvents is a real Microsoft Defender/Sentinel Advanced Hunting table; tune the parent-service and interpreter name lists to the affected product's actual executable before deployment.
DeviceProcessEvents
| where InitiatingProcessFileName has_any ("w3wp.exe", "httpd", "nginx", "java")
| where FileName has_any ("cmd.exe", "powershell.exe", "sh", "bash")
| project Timestamp, DeviceName, InitiatingProcessFileName, FileName, ProcessCommandLine