CVE-2026-40376: CWE-20: Improper Input Validation in Microsoft Visual Studio Code
CVE-2026-40376 is a high-severity vulnerability in Microsoft Visual Studio Code caused by improper input validation. This flaw allows an unauthorized attacker to elevate privileges over a network. An official fix is available to address this issue. No known exploits are reported in the wild at this time.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-40376) in Microsoft Visual Studio Code involves improper input validation (CWE-20) that could be exploited by an unauthorized attacker to elevate privileges remotely. The CVSS 3.1 base score is 7.5, indicating high severity, with network attack vector, high attack complexity, no privileges required, and user interaction required. The vulnerability affects version 1.0.0 of Visual Studio Code. Microsoft has released an official fix to remediate this issue.
Potential Impact
Successful exploitation allows an attacker to elevate privileges over a network, potentially leading to full compromise of the affected system. The vulnerability impacts confidentiality, integrity, and availability with high severity.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. Users and administrators should apply the vendor-provided patch to affected versions of Visual Studio Code promptly to mitigate the risk. No additional mitigations are specified by the vendor advisory.
CVE-2026-40376: CWE-20: Improper Input Validation in Microsoft Visual Studio Code
Description
CVE-2026-40376 is a high-severity vulnerability in Microsoft Visual Studio Code caused by improper input validation. This flaw allows an unauthorized attacker to elevate privileges over a network. An official fix is available to address this issue. No known exploits are reported in the wild at this time.
CVSS v3.1
Score 7.5high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-40376) in Microsoft Visual Studio Code involves improper input validation (CWE-20) that could be exploited by an unauthorized attacker to elevate privileges remotely. The CVSS 3.1 base score is 7.5, indicating high severity, with network attack vector, high attack complexity, no privileges required, and user interaction required. The vulnerability affects version 1.0.0 of Visual Studio Code. Microsoft has released an official fix to remediate this issue.
Potential Impact
Successful exploitation allows an attacker to elevate privileges over a network, potentially leading to full compromise of the affected system. The vulnerability impacts confidentiality, integrity, and availability with high severity.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. Users and administrators should apply the vendor-provided patch to affected versions of Visual Studio Code promptly to mitigate the risk. No additional mitigations are specified 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-2026-40376
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
- Remediation Level
- official-fix
Threat ID: 6a29d5c30e53e738839c2812
Added to database: 06/10/2026, 21:23:15 UTC
Last enriched: 07/29/2026, 21:03:58 UTC
Last updated: 07/31/2026, 19:33:05 UTC
Views: 360
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