CVE-2026-33838: CWE-415: Double Free in Microsoft Windows 10 Version 1607
Double free in Windows Message Queuing allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability is a double free condition (CWE-415) in the Windows Message Queuing component of Windows 10 Version 1607 (build 10.0.14393.0). A double free occurs when the same memory is freed twice, which can lead to memory corruption and potentially allow an attacker with local authorized access to escalate privileges. The vulnerability does not require user interaction and has low attack complexity. Microsoft has published an official fix to remediate this issue.
Potential Impact
Successful exploitation of this vulnerability could allow an authorized local attacker to elevate their privileges, potentially gaining higher system rights. This could compromise system confidentiality, integrity, and availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. It is recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33838 to remediate this vulnerability. No additional mitigation steps are indicated by the vendor.
CVE-2026-33838: CWE-415: Double Free in Microsoft Windows 10 Version 1607
Description
Double free in Windows Message Queuing allows an authorized attacker to elevate privileges locally.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability is a double free condition (CWE-415) in the Windows Message Queuing component of Windows 10 Version 1607 (build 10.0.14393.0). A double free occurs when the same memory is freed twice, which can lead to memory corruption and potentially allow an attacker with local authorized access to escalate privileges. The vulnerability does not require user interaction and has low attack complexity. Microsoft has published an official fix to remediate this issue.
Potential Impact
Successful exploitation of this vulnerability could allow an authorized local attacker to elevate their privileges, potentially gaining higher system rights. This could compromise system confidentiality, integrity, and availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. It is recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33838 to remediate this vulnerability. No additional mitigation steps are indicated by the vendor.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-03-24T00:52:01.353Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33838","vendor":"Microsoft"}]
Threat ID: 6a036539cbff5d861008c33d
Added to database: 5/12/2026, 5:36:57 PM
Last enriched: 5/12/2026, 7:24:26 PM
Last updated: 5/13/2026, 4:48:18 AM
Views: 3
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.