8.1

CVE-2026-40376: microsoft visual studio code Improper Input Validation

CVSS: 8.1v3.1HighAnalyzed
Published 09-06-2026Last modified 24-09-2026
Open JSON

Vulnerability summary

CVE-2026-40376 is a high (CVSS 8.1) Improper Input Validation vulnerability in microsoft visual studio code. EPSS estimates a 0.68% chance of exploitation in the next 30 days, higher than 51.5% of scored vulnerabilities.

Overall risk
33/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.1/10
010
High · v3.1 (NVD)
EPSS score
0.68%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 09-06-2026
    PublishedVulnerability first disclosed.
  2. 24-09-2026
    Last modifiedVulnerability information updated.

Description

Improper input validation in Visual Studio Code allows an unauthorized attacker to elevate privileges over a network.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.68%

Chance of exploitation in the next 30 days

Percentile

52%

Versus all other CVEs

30-day change

+0.01 pp

From 0.67% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.68%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Microsoft1 product

1 vendor · 1 product

References

1 links