# CVE-2022-21127: Intel: CVE-2022-21127 Special Register Buffer Data Sampling Update (SRBDS Update)

CVE-2022-21127 is fixed in 52 products on 2 platforms, first by KB5014702, released June 14, 2022. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-21127
- Priority: Routine
- CVSS: 5.5 (Important)
- EPSS: 0.0551
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation Less Likely
- Published: Jun 14, 2022
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21127

## Description

Incomplete cleanup in specific special register read operations for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Windows 10 Version 1607 for 32-bit Systems | 14393.5192 | [KB5014702](https://patchblox.com/security/data/fix/microsoft/kb5014702.md) | Jun 14, 2022 |
| Microsoft | Windows 10 Version 1607 for x64-based Systems | 14393.5192 | [KB5014702](https://patchblox.com/security/data/fix/microsoft/kb5014702.md) | Jun 14, 2022 |
| Microsoft | Windows 10 Version 1809 for 32-bit Systems | 17763.3046 | [KB5014692](https://patchblox.com/security/data/fix/microsoft/kb5014692.md) | Jun 14, 2022 |
| Microsoft | Windows 10 Version 1809 for ARM64-based Systems | 17763.3046 | [KB5014692](https://patchblox.com/security/data/fix/microsoft/kb5014692.md) | Jun 14, 2022 |
| Microsoft | Windows 10 Version 1809 for x64-based Systems | 17763.3046 | [KB5014692](https://patchblox.com/security/data/fix/microsoft/kb5014692.md) | Jun 14, 2022 |
| Microsoft | Windows 10 Version 20H2 for 32-bit Systems |  | [KB5014699](https://patchblox.com/security/data/fix/microsoft/kb5014699.md) | Jun 14, 2022 |
| Microsoft | Windows 10 Version 20H2 for ARM64-based Systems |  | [KB5014699](https://patchblox.com/security/data/fix/microsoft/kb5014699.md) | Jun 14, 2022 |
| Microsoft | Windows 10 Version 21H1 for 32-bit Systems |  | [KB5014699](https://patchblox.com/security/data/fix/microsoft/kb5014699.md) | Jun 14, 2022 |
| Microsoft | Windows 10 Version 21H1 for ARM64-based Systems |  | [KB5014699](https://patchblox.com/security/data/fix/microsoft/kb5014699.md) | Jun 14, 2022 |
| Microsoft | Windows 10 Version 21H1 for x64-based Systems |  | [KB5014699](https://patchblox.com/security/data/fix/microsoft/kb5014699.md) | Jun 14, 2022 |
| Microsoft | Windows 10 Version 21H2 for 32-bit Systems |  | [KB5014699](https://patchblox.com/security/data/fix/microsoft/kb5014699.md) | Jun 14, 2022 |
| Microsoft | Windows 10 Version 21H2 for ARM64-based Systems |  | [KB5014699](https://patchblox.com/security/data/fix/microsoft/kb5014699.md) | Jun 14, 2022 |
| Microsoft | Windows 10 Version 21H2 for x64-based Systems |  | [KB5014699](https://patchblox.com/security/data/fix/microsoft/kb5014699.md) | Jun 14, 2022 |
| Microsoft | Windows 10 for 32-bit Systems | 10240.19325 | [KB5014710](https://patchblox.com/security/data/fix/microsoft/kb5014710.md) | Jun 14, 2022 |
| Microsoft | Windows 10 for x64-based Systems | 10240.19325 | [KB5014710](https://patchblox.com/security/data/fix/microsoft/kb5014710.md) | Jun 14, 2022 |
| Microsoft | Windows 11 version 21H2 for ARM64-based Systems | 22000.739 | [KB5014697](https://patchblox.com/security/data/fix/microsoft/kb5014697.md) | Jun 14, 2022 |
| Microsoft | Windows 11 version 21H2 for x64-based Systems | 22000.739 | [KB5014697](https://patchblox.com/security/data/fix/microsoft/kb5014697.md) | Jun 14, 2022 |
| Microsoft | Windows 7 for 32-bit Systems Service Pack 1 |  | [KB5014742](https://patchblox.com/security/data/fix/microsoft/kb5014742.md) | Jun 14, 2022 |
| Microsoft | Windows 7 for 32-bit Systems Service Pack 1 |  | [KB5014748](https://patchblox.com/security/data/fix/microsoft/kb5014748.md) | Jun 14, 2022 |
| Microsoft | Windows 7 for x64-based Systems Service Pack 1 |  | [KB5014742](https://patchblox.com/security/data/fix/microsoft/kb5014742.md) | Jun 14, 2022 |
| Microsoft | Windows 7 for x64-based Systems Service Pack 1 |  | [KB5014748](https://patchblox.com/security/data/fix/microsoft/kb5014748.md) | Jun 14, 2022 |
| Microsoft | Windows 8.1 for 32-bit systems |  | [KB5014738](https://patchblox.com/security/data/fix/microsoft/kb5014738.md) | Jun 14, 2022 |
| Microsoft | Windows 8.1 for 32-bit systems |  | [KB5014746](https://patchblox.com/security/data/fix/microsoft/kb5014746.md) | Jun 14, 2022 |
| Microsoft | Windows 8.1 for x64-based systems |  | [KB5014738](https://patchblox.com/security/data/fix/microsoft/kb5014738.md) | Jun 14, 2022 |
| Microsoft | Windows 8.1 for x64-based systems |  | [KB5014746](https://patchblox.com/security/data/fix/microsoft/kb5014746.md) | Jun 14, 2022 |
| Microsoft | Windows RT 8.1 |  | [KB5014738](https://patchblox.com/security/data/fix/microsoft/kb5014738.md) | Jun 14, 2022 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 |  | [KB5014742](https://patchblox.com/security/data/fix/microsoft/kb5014742.md) | Jun 14, 2022 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 |  | [KB5014748](https://patchblox.com/security/data/fix/microsoft/kb5014748.md) | Jun 14, 2022 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) |  | [KB5014742](https://patchblox.com/security/data/fix/microsoft/kb5014742.md) | Jun 14, 2022 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) |  | [KB5014748](https://patchblox.com/security/data/fix/microsoft/kb5014748.md) | Jun 14, 2022 |
| Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 |  | [KB5014752](https://patchblox.com/security/data/fix/microsoft/kb5014752.md) | Jun 14, 2022 |
| Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 |  | [KB5014743](https://patchblox.com/security/data/fix/microsoft/kb5014743.md) | Jun 14, 2022 |
| Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) |  | [KB5014752](https://patchblox.com/security/data/fix/microsoft/kb5014752.md) | Jun 14, 2022 |
| Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) |  | [KB5014743](https://patchblox.com/security/data/fix/microsoft/kb5014743.md) | Jun 14, 2022 |
| Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 |  | [KB5014752](https://patchblox.com/security/data/fix/microsoft/kb5014752.md) | Jun 14, 2022 |
| Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 |  | [KB5014743](https://patchblox.com/security/data/fix/microsoft/kb5014743.md) | Jun 14, 2022 |
| Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) |  | [KB5014752](https://patchblox.com/security/data/fix/microsoft/kb5014752.md) | Jun 14, 2022 |
| Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) |  | [KB5014743](https://patchblox.com/security/data/fix/microsoft/kb5014743.md) | Jun 14, 2022 |
| Microsoft | Windows Server 2012 |  | [KB5014747](https://patchblox.com/security/data/fix/microsoft/kb5014747.md) | Jun 14, 2022 |
| Microsoft | Windows Server 2012 |  | [KB5014741](https://patchblox.com/security/data/fix/microsoft/kb5014741.md) | Jun 14, 2022 |
| Microsoft | Windows Server 2012 (Server Core installation) |  | [KB5014747](https://patchblox.com/security/data/fix/microsoft/kb5014747.md) | Jun 14, 2022 |
| Microsoft | Windows Server 2012 (Server Core installation) |  | [KB5014741](https://patchblox.com/security/data/fix/microsoft/kb5014741.md) | Jun 14, 2022 |
| Microsoft | Windows Server 2012 R2 |  | [KB5014738](https://patchblox.com/security/data/fix/microsoft/kb5014738.md) | Jun 14, 2022 |
| Microsoft | Windows Server 2012 R2 |  | [KB5014746](https://patchblox.com/security/data/fix/microsoft/kb5014746.md) | Jun 14, 2022 |
| Microsoft | Windows Server 2012 R2 (Server Core installation) |  | [KB5014738](https://patchblox.com/security/data/fix/microsoft/kb5014738.md) | Jun 14, 2022 |
| Microsoft | Windows Server 2012 R2 (Server Core installation) |  | [KB5014746](https://patchblox.com/security/data/fix/microsoft/kb5014746.md) | Jun 14, 2022 |
| Microsoft | Windows Server 2016 | 14393.5192 | [KB5014702](https://patchblox.com/security/data/fix/microsoft/kb5014702.md) | Jun 14, 2022 |
| Microsoft | Windows Server 2016 (Server Core installation) | 14393.5192 | [KB5014702](https://patchblox.com/security/data/fix/microsoft/kb5014702.md) | Jun 14, 2022 |
| Microsoft | Windows Server 2019 | 17763.3046 | [KB5014692](https://patchblox.com/security/data/fix/microsoft/kb5014692.md) | Jun 14, 2022 |
| Microsoft | Windows Server 2019 (Server Core installation) | 17763.3046 | [KB5014692](https://patchblox.com/security/data/fix/microsoft/kb5014692.md) | Jun 14, 2022 |
| Microsoft | Windows Server 2022 |  | [KB5014677](https://patchblox.com/security/data/fix/microsoft/kb5014677.md) | Jun 14, 2022 |
| Microsoft | Windows Server 2022 | 20348.768 | [KB5014678](https://patchblox.com/security/data/fix/microsoft/kb5014678.md) | Jun 14, 2022 |
| Microsoft | Windows Server 2022 (Server Core installation) |  | [KB5014677](https://patchblox.com/security/data/fix/microsoft/kb5014677.md) | Jun 14, 2022 |
| Microsoft | Windows Server 2022 (Server Core installation) | 20348.768 | [KB5014678](https://patchblox.com/security/data/fix/microsoft/kb5014678.md) | Jun 14, 2022 |
| Microsoft | Windows Server, version 20H2 (Server Core Installation) |  | [KB5014699](https://patchblox.com/security/data/fix/microsoft/kb5014699.md) | Jun 14, 2022 |
| Linux | intel-microcode Debian 12.15 (bookworm) | 3.20220510.1 | [DEBIAN-CVE-2022-21127](https://patchblox.com/security/data/fix/linux/debian-cve-2022-21127.md) | Jun 15, 2022 |
| Linux | intel-microcode Debian 13.5 (trixie) | 3.20220510.1 | [DEBIAN-CVE-2022-21127](https://patchblox.com/security/data/fix/linux/debian-cve-2022-21127.md) | Jun 15, 2022 |
| Linux | intel-microcode Debian 14 | 3.20220510.1 | [DEBIAN-CVE-2022-21127](https://patchblox.com/security/data/fix/linux/debian-cve-2022-21127.md) | Jun 15, 2022 |
| Linux | intel-microcode Ubuntu 18.04.6 LTS (bionic) | 3.20220510.0ubuntu0.18.04.1 | [intel-microcode 3.20220510.0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-intel-microcode-3.20220510.0ubuntu0.18.04.1.md) | Jun 15, 2022 |
| Linux | intel-microcode Ubuntu 20.04 LTS (focal) | 3.20220510.0ubuntu0.20.04.1 | [intel-microcode 3.20220510.0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-intel-microcode-3.20220510.0ubuntu0.20.04.1.md) | Jun 15, 2022 |
| Linux | intel-microcode Ubuntu 22.04.1 LTS (jammy) | 3.20220510.0ubuntu0.22.04.1 | [intel-microcode 3.20220510.0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-intel-microcode-3.20220510.0ubuntu0.22.04.1.md) | Jun 15, 2022 |
| Linux | kernel-uek ol 8 | 0:5.4.17-2136.308.9.el8uek | [ELSA-2022-9481](https://patchblox.com/security/data/fix/linux/elsa-2022-9481.md) | Jun 14, 2022 |
| Linux | kernel-uek-container ol 8 | 0:5.4.17-2136.308.9.el8 | [ELSA-2022-9486](https://patchblox.com/security/data/fix/linux/elsa-2022-9486.md) | Jun 14, 2022 |
| Linux | kernel-uek-container-debug ol 8 | 0:5.4.17-2136.308.9.el8 | [ELSA-2022-9486](https://patchblox.com/security/data/fix/linux/elsa-2022-9486.md) | Jun 14, 2022 |
| Linux | kernel-uek-debug ol 8 | 0:5.4.17-2136.308.9.el8uek | [ELSA-2022-9481](https://patchblox.com/security/data/fix/linux/elsa-2022-9481.md) | Jun 14, 2022 |
| Linux | kernel-uek-debug-devel ol 8 | 0:5.4.17-2136.308.9.el8uek | [ELSA-2022-9481](https://patchblox.com/security/data/fix/linux/elsa-2022-9481.md) | Jun 14, 2022 |
| Linux | kernel-uek-devel ol 8 | 0:5.4.17-2136.308.9.el8uek | [ELSA-2022-9481](https://patchblox.com/security/data/fix/linux/elsa-2022-9481.md) | Jun 14, 2022 |
| Linux | kernel-uek-doc ol 8 | 0:5.4.17-2136.308.9.el8uek | [ELSA-2022-9481](https://patchblox.com/security/data/fix/linux/elsa-2022-9481.md) | Jun 14, 2022 |
| Linux | kernel-uek-tools ol 8 | 0:5.4.17-2136.308.9.el7uek | [ELSA-2022-9481](https://patchblox.com/security/data/fix/linux/elsa-2022-9481.md) | Jun 14, 2022 |
| Linux | kernel-uek-tools-libs ol 8 | 0:5.4.17-2136.308.9.el7uek | [ELSA-2022-9481](https://patchblox.com/security/data/fix/linux/elsa-2022-9481.md) | Jun 14, 2022 |
| Linux | microcode_ctl ol 8 | 4:20220207-1.0.4.el8 | [ELSA-2022-9508](https://patchblox.com/security/data/fix/linux/elsa-2022-9508.md) | Jun 23, 2022 |
| Linux | perf ol 8 | 0:5.4.17-2136.308.9.el7uek | [ELSA-2022-9481](https://patchblox.com/security/data/fix/linux/elsa-2022-9481.md) | Jun 14, 2022 |
| Linux | python-perf ol 8 | 0:5.4.17-2136.308.9.el7uek | [ELSA-2022-9481](https://patchblox.com/security/data/fix/linux/elsa-2022-9481.md) | Jun 14, 2022 |

---

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