CVE-2026-50521: CWE-416: Use After Free in Microsoft Microsoft Edge (Chromium-based)
Use after free in Microsoft Edge (Chromium-based) allows an authorized attacker to execute code over a network.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in Microsoft Edge (Chromium-based) that can be exploited by an authorized attacker to execute arbitrary code remotely. The CVSS vector indicates the attack requires network access with low complexity and privileges, no user interaction, and impacts confidentiality, integrity, and availability. Microsoft has published an official fix for this vulnerability.
Potential Impact
Successful exploitation could allow an attacker to execute arbitrary code remotely, leading to high confidentiality and integrity impact, and low availability impact. This could compromise the affected system by allowing code execution with the privileges of the user running Microsoft Edge.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the provided security update from the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50521 to remediate this vulnerability.
CVE-2026-50521: CWE-416: Use After Free in Microsoft Microsoft Edge (Chromium-based)
Description
Use after free in Microsoft Edge (Chromium-based) allows an authorized attacker to execute code over a network.
CVSS v3.1
Score 8.3high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a use-after-free condition in Microsoft Edge (Chromium-based) that can be exploited by an authorized attacker to execute arbitrary code remotely. The CVSS vector indicates the attack requires network access with low complexity and privileges, no user interaction, and impacts confidentiality, integrity, and availability. Microsoft has published an official fix for this vulnerability.
Potential Impact
Successful exploitation could allow an attacker to execute arbitrary code remotely, leading to high confidentiality and integrity impact, and low availability impact. This could compromise the affected system by allowing code execution with the privileges of the user running Microsoft Edge.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the provided security update from the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50521 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T19:00:41.293Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50521","vendor":"Microsoft"}]
Threat ID: 6a457a6627e9c79719197538
Added to database: 07/01/2026, 20:36:54 UTC
Last enriched: 08/14/2026, 13:53:29 UTC
Last updated: 08/15/2026, 14:18:13 UTC
Views: 266
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.