# CVE-2024-36331: linux: Improper initialization of CPU cache memory could allow a privileged attacker with hypervisor access to overwrite SEV...

CVE-2024-36331 is fixed in 4 products on 1 platform, first by DEBIAN-CVE-2024-36331, released September 6, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2024-36331
- Priority: Routine
- CVSS: 3.2 (low)
- EPSS: 0.0016
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 6, 2025

## Description

Improper initialization of CPU cache memory could allow a privileged attacker with hypervisor access to overwrite SEV-SNP guest memory resulting in loss of data integrity.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | edk2-aarch64 ol 8 | 1:20250905-4.el8 | [ELSA-2025-20669](https://patchblox.com/security/data/fix/linux/elsa-2025-20669.md) | Dec 3, 2025 |
| Linux | edk2-aarch64 ol 9 | 30:20250905-4.el9 | [ELSA-2025-28047](https://patchblox.com/security/data/fix/linux/elsa-2025-28047.md) | Dec 11, 2025 |
| Linux | edk2-ovmf ol 8 | 1:20250905-4.el8 | [ELSA-2025-20669](https://patchblox.com/security/data/fix/linux/elsa-2025-20669.md) | Dec 3, 2025 |
| Linux | edk2-ovmf ol 9 | 30:20250905-4.el9 | [ELSA-2025-28047](https://patchblox.com/security/data/fix/linux/elsa-2025-28047.md) | Dec 11, 2025 |
| Linux | linux Debian 12.15 (bookworm) | 6.1.148-1 | [DEBIAN-CVE-2024-36331](https://patchblox.com/security/data/fix/linux/debian-cve-2024-36331.md) | Sep 6, 2025 |
| Linux | linux Debian 13.5 (trixie) | 6.12.43-1 | [DEBIAN-CVE-2024-36331](https://patchblox.com/security/data/fix/linux/debian-cve-2024-36331.md) | Sep 6, 2025 |
| Linux | linux Debian 14 | 6.16.3-1 | [DEBIAN-CVE-2024-36331](https://patchblox.com/security/data/fix/linux/debian-cve-2024-36331.md) | Sep 6, 2025 |
| Linux | linux-6.1 Debian 11.6 (bullseye) | 6.1.153-1~deb11u1 | [DLA-4328-1](https://patchblox.com/security/data/fix/linux/dla-4328-1.md) | Oct 13, 2025 |

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Data as of 2026-11-07T12:40:37Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo