CVE-2026-57981: CWE-416: Use After Free in Microsoft Microsoft Edge (Chromium-based)
Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
AI Analysis
Technical Summary
This vulnerability, identified as CWE-416 (Use After Free), exists in Microsoft Edge (Chromium-based). It enables remote code execution by an unauthorized attacker due to improper handling of memory, specifically use-after-free conditions. The CVSS 3.1 vector indicates the attack can be performed remotely without privileges and requires user interaction. The impact includes high confidentiality, integrity, and availability consequences. Microsoft has published an official fix for this vulnerability.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code remotely on the affected system, potentially leading to full compromise of confidentiality, integrity, and availability of the system running Microsoft Edge (Chromium-based).
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft as detailed in the vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57981 to remediate this vulnerability.
CVE-2026-57981: CWE-416: Use After Free in Microsoft Microsoft Edge (Chromium-based)
Description
Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
CVSS v3.1
Score 8.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CWE-416 (Use After Free), exists in Microsoft Edge (Chromium-based). It enables remote code execution by an unauthorized attacker due to improper handling of memory, specifically use-after-free conditions. The CVSS 3.1 vector indicates the attack can be performed remotely without privileges and requires user interaction. The impact includes high confidentiality, integrity, and availability consequences. Microsoft has published an official fix for this vulnerability.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code remotely on the affected system, potentially leading to full compromise of confidentiality, integrity, and availability of the system running Microsoft Edge (Chromium-based).
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft as detailed in the vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57981 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-26T17:45:44.854Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57981","vendor":"Microsoft"}]
Threat ID: 6a48210127e9c79719accb4a
Added to database: 07/03/2026, 20:52:17 UTC
Last enriched: 07/03/2026, 21:04:36 UTC
Last updated: 07/03/2026, 22:52:15 UTC
Views: 4
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