CVE-2026-21516

7.8 highEPSS 0.9%

High (7.8) in microsoft github copilot. EPSS 0.9% chance of exploitation in the next 30 days.

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

Severity

CVSS 3.1

7.8 high

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

EPSS: 0.9% chance of exploitation in the next 30 days; higher than 60% of CVEs (scores of 2026-10-31)
CWE: CWE-77
Published: 2026-02-10
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

microsoft:github_copilot

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21516

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