CVE-2026-21256

8.8 highEPSS 1.2%

High (8.8) in microsoft visual studio 2022. EPSS 1.2% chance of exploitation in the next 30 days.

Improper neutralization of special elements used in a command ('command injection') in GitHub Copilot and Visual Studio allows an unauthorized attacker to execute code over a network.

Severity

CVSS 3.1

8.8 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS: 1.2% chance of exploitation in the next 30 days; higher than 67% of CVEs (scores of 2026-10-31)
CWEs: CWE-77, CWE-94
Published: 2026-02-10
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

microsoft:visual_studio_2022

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21256

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