7.1

CVE-2025-21264: microsoft microsoft visual studio code copilot chat extension

CVSS: 7.1v3.1HighAnalyzed
Published 13-05-2025Last modified 13-02-2026
Open JSON

Vulnerability summary

CVE-2025-21264 is a high (CVSS 7.1) vulnerability in microsoft microsoft visual studio code copilot chat extension. EPSS estimates a 0.79% chance of exploitation in the next 30 days, higher than 55.3% of scored vulnerabilities.

Overall risk
29/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.1/10
010
High · v3.1 (CVE.org)
EPSS score
0.79%
0%100%
Low · +0.04 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 13-05-2025
    PublishedVulnerability first disclosed.
  2. 13-02-2026
    Last modifiedVulnerability information updated.

Description

Files or directories accessible to external parties in Visual Studio Code allows an unauthorized attacker to bypass a security feature locally.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.79%

Chance of exploitation in the next 30 days

Percentile

55%

Versus all other CVEs

30-day change

+0.04 pp

From 0.75% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.79%

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

Microsoft2 products

1 vendor · 2 products

References

1 links