CVE-2026-45495: CWE-35: Path Traversal: '.../...//' in Microsoft Microsoft Edge (Chromium-based)
CVE-2026-45495 is a high-severity remote code execution vulnerability in Microsoft Edge (Chromium-based) caused by a path traversal issue. The vulnerability involves improper handling of path sequences such as '.../...//' which can be exploited to execute arbitrary code remotely. An official fix is available from Microsoft to address this issue.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-45495) affects Microsoft Edge (Chromium-based) version 1.0.0.0 and is classified under CWE-35 (Path Traversal) with additional related weaknesses CWE-94, CWE-119, and CWE-20. It allows remote attackers to execute arbitrary code by exploiting improper path validation involving sequences like '.../...//'. The CVSS 3.1 base score is 8.8, indicating high severity with network attack vector, low attack complexity, no privileges required, user interaction required, and high impact on confidentiality, integrity, and availability. Microsoft has published an official fix for this vulnerability.
Potential Impact
Successful exploitation of this vulnerability can lead to remote code execution on affected systems running Microsoft Edge (Chromium-based) version 1.0.0.0. This compromises confidentiality, integrity, and availability of the affected system. No known exploits in the wild have been reported at this time.
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-2026-45495 to remediate this vulnerability.
CVE-2026-45495: CWE-35: Path Traversal: '.../...//' in Microsoft Microsoft Edge (Chromium-based)
Description
CVE-2026-45495 is a high-severity remote code execution vulnerability in Microsoft Edge (Chromium-based) caused by a path traversal issue. The vulnerability involves improper handling of path sequences such as '.../...//' which can be exploited to execute arbitrary code remotely. An official fix is available from Microsoft to address this issue.
CVSS v3.1
Score 8.8high
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-45495) affects Microsoft Edge (Chromium-based) version 1.0.0.0 and is classified under CWE-35 (Path Traversal) with additional related weaknesses CWE-94, CWE-119, and CWE-20. It allows remote attackers to execute arbitrary code by exploiting improper path validation involving sequences like '.../...//'. The CVSS 3.1 base score is 8.8, indicating high severity with network attack vector, low attack complexity, no privileges required, user interaction required, and high impact on confidentiality, integrity, and availability. Microsoft has published an official fix for this vulnerability.
Potential Impact
Successful exploitation of this vulnerability can lead to remote code execution on affected systems running Microsoft Edge (Chromium-based) version 1.0.0.0. This compromises confidentiality, integrity, and availability of the affected system. No known exploits in the wild have been reported at this time.
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-2026-45495 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-12T16:07:22.618Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45495","vendor":"Microsoft"}]
Threat ID: 6a0b4e31ec166c07b0dc032e
Added to database: 05/18/2026, 17:36:49 UTC
Last enriched: 07/01/2026, 01:22:32 UTC
Last updated: 07/07/2026, 20:29:12 UTC
Views: 338
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