VDB
CVE-2026-21523
CVE-2026-21523
PUBLISHED
CVSS 8.800000190734863 HIGH
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.
EPSS 0.03% · 10.7th percentile
Risk Scores
CVSS v3.1
8.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
EPSS Score
0.03%
10.7th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| microsoft | visual_studio_2022 | 17.14.0 |
| microsoft | visual_studio_2026 | 18.3.0 |
| Microsoft | Microsoft Visual Studio 2022 version 17.14 | 17.14.0 |
| Microsoft | Microsoft Visual Studio 2026 version 18.3 | 18.3.0 |
Timeline
- Feb 10, 2026 CVE Published
- Feb 10, 2026 PoC Published
- Feb 10, 2026 PoC Published
- Feb 10, 2026 PoC Published
- Feb 11, 2026 EPSS Score
- Feb 11, 2026 PoC Published
- Feb 11, 2026 PoC Published
- Feb 13, 2026 EPSS Score
- Feb 13, 2026 PoC Published
- Feb 13, 2026 PoC Published
- Feb 13, 2026 PoC Published
- Feb 15, 2026 EPSS Score
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23655 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21537 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21516 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21229 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21257 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21511 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21523 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21256 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21527 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21260 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21518 advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21522 advisory