# CVE-2025-31648: ucode-intel: Improper handling of values in the microcode flow for

CVE-2025-31648 is fixed in 3 products on 1 platform, first by intel-microcode 3.20260210.0ubuntu0.18.04.1+esm1, released February 10, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-31648
- Priority: Routine
- CVSS: n/a (Low)
- EPSS: 0.0015
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 10, 2026

## Description

Improper handling of values in the microcode flow for

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | intel-microcode Debian 14 | 3.20260210.1 | [DEBIAN-CVE-2025-31648](https://patchblox.com/security/data/fix/linux/debian-cve-2025-31648.md) | Feb 10, 2026 |
| Linux | intel-microcode Ubuntu 18.04.6 LTS (bionic) | 3.20260210.0ubuntu0.18.04.1+esm1 | [intel-microcode 3.20260210.0ubuntu0.18.04.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-intel-microcode-3.20260210.0ubuntu0.18.04.1-esm1.md) | Feb 10, 2026 |
| Linux | intel-microcode Ubuntu 20.04 LTS (focal) | 3.20260210.0ubuntu0.20.04.1+esm1 | [intel-microcode 3.20260210.0ubuntu0.20.04.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-intel-microcode-3.20260210.0ubuntu0.20.04.1-esm1.md) | Feb 10, 2026 |
| Linux | intel-microcode Ubuntu 22.04.1 LTS (jammy) | 3.20260210.0ubuntu0.22.04.1 | [intel-microcode 3.20260210.0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-intel-microcode-3.20260210.0ubuntu0.22.04.1.md) | Feb 10, 2026 |
| Linux | intel-microcode Ubuntu 24.04.5 LTS (noble) | 3.20260210.0ubuntu0.24.04.1 | [intel-microcode 3.20260210.0ubuntu0.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-intel-microcode-3.20260210.0ubuntu0.24.04.1.md) | Feb 10, 2026 |
| Linux | intel-microcode Ubuntu 25.10 (questing) | 3.20260210.0ubuntu0.25.10.1 | [intel-microcode 3.20260210.0ubuntu0.25.10.1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-intel-microcode-3.20260210.0ubuntu0.25.10.1.md) | Feb 10, 2026 |
| Linux | microcode_ctl amzn 2023 | 2:2.1-53.amzn2023.0.15 | [ALAS2023-2026-1675](https://patchblox.com/security/data/fix/linux/alas2023-2026-1675.md) | May 11, 2026 |
| Linux | ucode-intel opensuse-leap 15.6 | 20260210-150200.62.1 | [SUSE-SU-2026:0668-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0668-1.md) | Feb 26, 2026 |
| Linux | ucode-intel opensuse-leap 16.0 | 20260210-160000.1.1 | [OPENSUSE-SU-2026:20401-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20401-1.md) | Mar 19, 2026 |
| Linux | ucode-intel sles 15.6 | 20260210-150200.62.1 | [SUSE-SU-2026:0668-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0668-1.md) | Feb 26, 2026 |
| Linux | ucode-intel sles 15.7 | 20260210-150200.62.1 | [SUSE-SU-2026:0668-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0668-1.md) | Feb 26, 2026 |
| Linux | ucode-intel sles 16.0 | 20260210-160000.1.1 | [SUSE-SU-2026:20941-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-20941-1.md) | Mar 19, 2026 |

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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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