# KB1163583: November 2026 security update

KB1163583, released November 10, 2026, fixes 1 CVE in GitHub Copilot Plugin for JetBrains IDEs. None of them is reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/fix/microsoft/kb1163583
- Platform: Microsoft
- Released: Nov 10, 2026
- Priority: Routine (Closes CVE-2026-83953)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://support.microsoft.com/help/1163583

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [GitHub Copilot Plugin for JetBrains IDEs](https://patchblox.com/security/data/product/microsoft/github-copilot-plugin-for-jetbrains-ides.md) |  |  |

## CVEs this fix closes

| CVE | Priority | Component | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-83953](https://patchblox.com/security/data/cve/CVE-2026-83953.md) | Routine | Github Copilot | 5.5 | n/a |  |

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Data as of 2026-11-11T01:43:54Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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