# RHSA-2026:25908: kernel security update

RHSA-2026:25908, released May 27, 2026, fixes 3 CVEs in kernel (version 6.12.0-55.79.1.el10_0). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2026-25908
- Platform: Linux
- Released: May 27, 2026
- Priority: High (Closes CVE-2024-56645, high severity)
- CVEs: 3, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2026:25908

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [kernel](https://patchblox.com/security/data/product/linux/kernel.md) | RHEL 10 | 6.12.0-55.79.1.el10_0 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2024-56645](https://patchblox.com/security/data/cve/CVE-2024-56645.md) | High | kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system.  Security Fix(es):  * kernel: c... | 7.8 | 0.0068 |  |
| [CVE-2026-46243](https://patchblox.com/security/data/cve/CVE-2026-46243.md) | High | smb: client: reject userspace cifs.spnego descriptions | 7.8 | 0.0041 |  |
| [CVE-2024-56603](https://patchblox.com/security/data/cve/CVE-2024-56603.md) | High | kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system.  Security Fix(es):  * kernel: c... | 8.1 | 0.0024 |  |

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo