VDB
CVE-2026-21256
CVE-2026-21256
PUBLISHED
CVSS 8 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 0.05% · 14.5th percentile
Risk Scores
CVSS v3.1
8
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
EPSS Score
0.05%
14.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Power BI Report Server | 1.6.0 |
| microsoft | power_bi_report_server | 1.6.0 |
| microsoft | visual_studio_2022 | 17.14.0, 17.14.0, 17.14.0 |
| Microsoft | N/A |
Timeline
- Feb 10, 2026 CVE Published
- Feb 10, 2026 PoC Published
- Feb 11, 2026 EPSS Score
- Feb 13, 2026 EPSS Score
- Feb 15, 2026 EPSS Score
- Feb 17, 2026 EPSS Score
- Feb 19, 2026 EPSS Score
- Feb 21, 2026 EPSS Score
- Feb 23, 2026 EPSS Score
- Feb 25, 2026 EPSS Score
- Feb 27, 2026 EPSS Score
- Mar 1, 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
- https://nvd.nist.gov/vuln/detail/CVE-2026-21256 advisory