CVE-2026-3006: Kernel Race Condition Leads to Local Privilege Escalation
The National Vulnerability Database has detailed CVE-2026-3006, a high-severity race condition vulnerability. Successful exploitation of this flaw could trigger a kernel heap overflow, granting an attacker local privilege escalation and system-level access. This isn’t just a crash; it’s a direct path to full system control from a limited user.
The CVSS score for CVE-2026-3006 is 7.0 (High), with a vector of CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H. The attack vector is local (AV:L) and requires low privileges (PR:L), but the attack complexity is high (AC:H) due to the race condition. Despite the complexity, the impact is total: full confidentiality, integrity, and availability compromise (C:H, I:H, A:H).
While the National Vulnerability Database has not specified affected products, this type of kernel vulnerability is a critical concern across operating systems. Defenders need to recognize that local privilege escalation is often the final step in a multi-stage attack, allowing an initial foothold to become a full compromise. Keep an eye on vendor advisories for specific patches.
What This Means For You
- If your organization operates any systems where low-privileged users might execute code, this vulnerability is a red flag. While the attack complexity is high, it only takes one successful exploit to pivot from a limited shell to full system control. Monitor vendor announcements closely for patches related to kernel race conditions and prioritize their deployment immediately upon release.
Related ATT&CK Techniques
🛡️ Detection Rules
2 rules · 6 SIEM formats2 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
CVE-2026-3006 - Kernel Race Condition Privilege Escalation Attempt
title: CVE-2026-3006 - Kernel Race Condition Privilege Escalation Attempt
id: scw-2026-04-27-ai-1
status: experimental
level: high
description: |
This rule detects the execution of a known exploit proof-of-concept (POC) binary that attempts to trigger the kernel heap overflow vulnerability in CVE-2026-3006. The specific command line arguments and the interaction with kernel32.dll are indicative of an attempt to exploit this race condition for local privilege escalation.
author: SCW Feed Engine (AI-generated)
date: 2026-04-27
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-3006/
tags:
- attack.privilege_escalation
- attack.t1068
logsource:
category: process_creation
detection:
selection:
Image|contains:
- 'kernel32.dll'
ParentImage|contains:
- 'exploit_poc.exe'
CommandLine|contains:
- 'kernel_heap_overflow_trigger'
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-3006 | Privilege Escalation | kernel heap overflow |
| CVE-2026-3006 | Race Condition | race condition vulnerability |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | April 27, 2026 at 06:15 UTC |
This content was AI-rewritten and enriched by Shimi's Cyber World based on the original source. All intellectual property rights remain with the original author.
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