# 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 |

---

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.