# RHSA-2025:8345: Security update for 4 packages

RHSA-2025:8345, released June 2, 2025, fixes 2 CVEs across 4 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2025-8345
- Platform: Linux
- Released: Jun 2, 2025
- Priority: High (Closes CVE-2025-21756, high severity)
- CVEs: 2, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2025:8345

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [kpatch-patch-4_18_0-553](https://patchblox.com/security/data/product/linux/kpatch-patch-4-18-0-553.md) | RHEL 8 | 0:1-6.el8_10 |
| [kpatch-patch-4_18_0-553_16_1](https://patchblox.com/security/data/product/linux/kpatch-patch-4-18-0-553-16-1.md) | RHEL 8 | 0:1-5.el8_10 |
| [kpatch-patch-4_18_0-553_30_1](https://patchblox.com/security/data/product/linux/kpatch-patch-4-18-0-553-30-1.md) | RHEL 8 | 0:1-4.el8_10 |
| [kpatch-patch-4_18_0-553_40_1](https://patchblox.com/security/data/product/linux/kpatch-patch-4-18-0-553-40-1.md) | RHEL 8 | 0:1-2.el8_10 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2025-21756](https://patchblox.com/security/data/cve/CVE-2025-21756.md) | High | perf: The kernel packages contain the Linux kernel, the core of any Linux operating system.  Security Fix(es):  * kernel: n... | 7.8 | 0.0089 |  |
| [CVE-2024-53141](https://patchblox.com/security/data/cve/CVE-2024-53141.md) | High | bpftool: The kernel packages contain the Linux kernel, the core of any Linux operating system.  Security Fix(es):  * kernel: h... | 7.8 | 0.0040 |  |

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo