VULNERABILITY INTELLIGENCE

CVE-2026-21523

CVSS score8 HIGH
EPSS probability0.78%
CISA KEVNot currently listed
Published2026-02-10
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Description

Time-of-check time-of-use (toctou) race condition in GitHub Copilot and Visual Studio allows an authorized attacker to execute code over a network.

Weakness classification

  • secure@microsoft.com: CWE-367

Primary references