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CVE-2026-40376: Visual Studio Code Elevation of Privilege Vulnerability

highCVSS 7.5CVE-2026-40376
Improper input validation in Visual Studio Code allows an unauthorized attacker to elevate privileges over a network.

CSIRTS triage

vendor: Microsoftproduct: Visual Studio CodePrivilege escalation
What
Improper input validation in Visual Studio Code allows an unauthorized attacker to elevate privileges over a network.
Who is affected
Users of Visual Studio Code with network access.
Urgency
Remediation is important but not urgent as there is no active exploitation reported.
Action
Update Visual Studio Code to the latest version to mitigate the vulnerability.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
high — CVSS 7.5
Published
2026-06-09
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40376

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-40376coverage & exploitation statusNVD · CVE.org

Recent advisories for Visual Studio Code

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

More from Microsoft Security Response Center