# CVE-2025-29828: Windows Schannel Remote Code Execution Vulnerability

CVE-2025-29828 is fixed in 11 products on 1 platform, first by KB5060999, released June 10, 2025. It is not reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/cve/CVE-2025-29828
- Priority: Urgent
- CVSS: 8.1 (Critical)
- EPSS: 0.0127
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation Less Likely
- Published: Jun 10, 2025
- Weakness: Missing Release of Memory after Effective Lifetime
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29828

## Description

<p>Missing release of memory after effective lifetime in Windows Cryptographic Services allows an unauthorized attacker to execute code over a network.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Windows 11 Version 22H2 for ARM64-based Systems |  | [KB5060999](https://patchblox.com/security/data/fix/microsoft/kb5060999.md) | Jun 10, 2025 |
| Microsoft | Windows 11 Version 22H2 for x64-based Systems |  | [KB5060999](https://patchblox.com/security/data/fix/microsoft/kb5060999.md) | Jun 10, 2025 |
| Microsoft | Windows 11 Version 23H2 for ARM64-based Systems |  | [KB5060999](https://patchblox.com/security/data/fix/microsoft/kb5060999.md) | Jun 10, 2025 |
| Microsoft | Windows 11 Version 23H2 for x64-based Systems |  | [KB5060999](https://patchblox.com/security/data/fix/microsoft/kb5060999.md) | Jun 10, 2025 |
| Microsoft | Windows 11 Version 24H2 for ARM64-based Systems | 26100.4349 | [KB5060842](https://patchblox.com/security/data/fix/microsoft/kb5060842.md) | Jun 10, 2025 |
| Microsoft | Windows 11 Version 24H2 for ARM64-based Systems | 26100.4270 | [KB5060841](https://patchblox.com/security/data/fix/microsoft/kb5060841.md) | Jun 10, 2025 |
| Microsoft | Windows 11 Version 24H2 for x64-based Systems | 26100.4349 | [KB5060842](https://patchblox.com/security/data/fix/microsoft/kb5060842.md) | Jun 10, 2025 |
| Microsoft | Windows 11 Version 24H2 for x64-based Systems | 26100.4270 | [KB5060841](https://patchblox.com/security/data/fix/microsoft/kb5060841.md) | Jun 10, 2025 |
| Microsoft | Windows Server 2022 | 20348.3745 | [KB5060525](https://patchblox.com/security/data/fix/microsoft/kb5060525.md) | Jun 10, 2025 |
| Microsoft | Windows Server 2022 | 20348.3807 | [KB5060526](https://patchblox.com/security/data/fix/microsoft/kb5060526.md) | Jun 10, 2025 |
| Microsoft | Windows Server 2022 (Server Core installation) | 20348.3745 | [KB5060525](https://patchblox.com/security/data/fix/microsoft/kb5060525.md) | Jun 10, 2025 |
| Microsoft | Windows Server 2022 (Server Core installation) | 20348.3807 | [KB5060526](https://patchblox.com/security/data/fix/microsoft/kb5060526.md) | Jun 10, 2025 |
| Microsoft | Windows Server 2022, 23H2 Edition (Server Core installation) | 25398.1665 | [KB5060118](https://patchblox.com/security/data/fix/microsoft/kb5060118.md) | Jun 10, 2025 |
| Microsoft | Windows Server 2025 | 26100.4349 | [KB5060842](https://patchblox.com/security/data/fix/microsoft/kb5060842.md) | Jun 10, 2025 |
| Microsoft | Windows Server 2025 | 26100.4270 | [KB5060841](https://patchblox.com/security/data/fix/microsoft/kb5060841.md) | Jun 10, 2025 |
| Microsoft | Windows Server 2025 (Server Core installation) | 26100.4349 | [KB5060842](https://patchblox.com/security/data/fix/microsoft/kb5060842.md) | Jun 10, 2025 |
| Microsoft | Windows Server 2025 (Server Core installation) | 26100.4270 | [KB5060841](https://patchblox.com/security/data/fix/microsoft/kb5060841.md) | Jun 10, 2025 |

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Data as of 2026-11-09T01:18:40Z 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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