What is RHSA-2026:1909?

RHSA-2026:1909 is a security advisory published by Red Hat Product Security with High severity. Red Hat Security Advisory: kernel security update

Which CVE IDs does RHSA-2026:1909 cover?

RHSA-2026:1909 covers the following CVE IDs: CVE-2025-40248, CVE-2025-68301, CVE-2022-50865, CVE-2023-53751. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:1909?

RHSA-2026:1909 has a CVSS v3 base score of 7.5, published by Red Hat Product Security.

RHSA-2026:1909HighCVSS 7.5

Red Hat Security Advisory: kernel security update

Vendor

Red Hat Product Security

Published

February 4, 2026

Last Modified

June 29, 2026

🔗 CVE IDs covered (4)

CVE-2025-40248 →CVE-2025-68301 →CVE-2022-50865 →CVE-2023-53751 →

📋 Description

CVE-2022-50865 — kernel: tcp: fix a signed-integer-overflow bug in tcp_add_backlog() CVE-2023-53751 — kernel: Linux kernel (CIFS): Use-after-free vulnerability allows data integrity compromise and denial of service CVE-2025-40248 — kernel: Linux kernel: vsock vulnerability may lead to memory corruption CVE-2025-68301 — kernel: net: atlantic: fix fragment overflow handling in RX path

🔗 References (7)

selfhttps://access.redhat.com/errata/RHSA-2026:1909
externalhttps://access.redhat.com/security/updates/classification/#important
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2418872
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2419858
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2422836
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2426226
selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_1909.json