CVE-2026-58281: CWE-502: Deserialization of Untrusted Data in Microsoft Microsoft Edge (Chromium-based)
Deserialization of untrusted data in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
AI Analysis
Technical Summary
This vulnerability (CWE-502) in Microsoft Edge (Chromium-based) arises from improper handling of deserialization of untrusted data, enabling remote code execution by an attacker without privileges. The CVSS 3.1 score is 8.3, reflecting high impact on confidentiality, integrity, and availability with network attack vector and required user interaction. Microsoft has released an official fix addressing this issue.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary code remotely, potentially leading to full compromise of the affected system's confidentiality, integrity, and availability. The vulnerability requires user interaction and has a high attack complexity.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. Users and administrators should apply the provided security update to Microsoft Edge (Chromium-based) promptly to remediate the issue. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-58281: CWE-502: Deserialization of Untrusted Data in Microsoft Microsoft Edge (Chromium-based)
Description
Deserialization of untrusted data in Microsoft Edge (Chromium-based) allows an unauthorized 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 (CWE-502) in Microsoft Edge (Chromium-based) arises from improper handling of deserialization of untrusted data, enabling remote code execution by an attacker without privileges. The CVSS 3.1 score is 8.3, reflecting high impact on confidentiality, integrity, and availability with network attack vector and required user interaction. Microsoft has released an official fix addressing this issue.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary code remotely, potentially leading to full compromise of the affected system's confidentiality, integrity, and availability. The vulnerability requires user interaction and has a high attack complexity.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. Users and administrators should apply the provided security update to Microsoft Edge (Chromium-based) promptly to remediate the issue. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Microsoft Security Response Center
- Advisory Id
- msrc_CVE-2026-58281
- Cve Count
- 1
- Remediation Level
- official-fix
- State
- PUBLISHED
Threat ID: 6a535c0b68715ace43ad7ae0
Added to database: 07/12/2026, 09:19:07 UTC
Last enriched: 08/08/2026, 16:49:01 UTC
Last updated: 09/13/2026, 19:03:07 UTC
Views: 149
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