# RHSA-2026:3987: kpatch-patch-5_14_0-611_9_1 security update

RHSA-2026:3987, released March 12, 2026, fixes 1 CVE in kpatch-patch-5_14_0-611_9_1 (version 0:1-3.el9_7). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2026-3987
- Platform: Linux
- Released: Mar 12, 2026
- Priority: High (Closes CVE-2025-40248, high severity)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2026:3987

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [kpatch-patch-5_14_0-611_9_1](https://patchblox.com/security/data/product/linux/kpatch-patch-5-14-0-611-9-1.md) | RHEL 9 | 0:1-3.el9_7 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2025-40248](https://patchblox.com/security/data/cve/CVE-2025-40248.md) | High | vsock: Ignore signal/timeout on connect() if already established | 7.8 | 0.0017 |  |

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo