# KB3061064: October 2023 security update

KB3061064, released October 10, 2023, fixes 6 CVEs across 3 products. One of them is being exploited (CVE-2023-41763); 1 on CISA KEV. Patch Radar priority: Patch now.

- Web page: https://patchblox.com/security/fix/microsoft/kb3061064
- Platform: Microsoft
- Released: Oct 10, 2023
- Priority: Patch now (Closes CVE-2023-41763, exploited (CISA KEV))
- CVEs: 6, exploited: 1, on CISA KEV: 1
- Vendor advisory: https://support.microsoft.com/help/3061064

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Skype for Business Server 2015 CU 8](https://patchblox.com/security/data/product/microsoft/skype-for-business-server-2015-cu-8.md) |  |  |
| [Skype for Business Server 2015 CU13](https://patchblox.com/security/data/product/microsoft/skype-for-business-server-2015-cu13.md) |  |  |
| [Skype for Business Server 2015 March 2019 Update](https://patchblox.com/security/data/product/microsoft/skype-for-business-server-2015-march-2019-update.md) |  |  |

## CVEs this fix closes

| CVE | Priority | Component | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2023-41763](https://patchblox.com/security/data/cve/CVE-2023-41763.md) | Patch now | Skype for Business | 5.3 | 0.9028 | CISA KEV, Disclosed |
| [CVE-2023-36780](https://patchblox.com/security/data/cve/CVE-2023-36780.md) | Urgent | Skype for Business | 7.2 | 0.0268 | More likely |
| [CVE-2023-36786](https://patchblox.com/security/data/cve/CVE-2023-36786.md) | High | Skype for Business | 7.2 | 0.0257 |  |
| [CVE-2023-36789](https://patchblox.com/security/data/cve/CVE-2023-36789.md) | High | Skype for Business | 7.2 | 0.0254 |  |
| [CVE-2019-0798](https://patchblox.com/security/data/cve/CVE-2019-0798.md) | High | Skype for Business | n/a | 0.0208 |  |
| [CVE-2019-0624](https://patchblox.com/security/data/cve/CVE-2019-0624.md) | High | Skype for Business | n/a | 0.0146 |  |

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Data as of 2026-11-07T18:46:35Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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