What is RHSA-2026:5197?

RHSA-2026:5197 is a security advisory published by Red Hat Product Security with Medium severity. Red Hat Security Advisory: kernel security update

Which CVE IDs does RHSA-2026:5197 cover?

RHSA-2026:5197 covers the following CVE IDs: CVE-2025-38248, CVE-2026-23001. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:5197?

RHSA-2026:5197 has a CVSS v3 base score of 7.8, published by Red Hat Product Security.

RHSA-2026:5197MediumCVSS 7.8

Red Hat Security Advisory: kernel security update

Vendor

Red Hat Product Security

Published

March 23, 2026

Last Modified

June 13, 2026

🔗 CVE IDs covered (2)

CVE-2025-38248 →CVE-2026-23001 →

📋 Description

CVE-2025-38248 — kernel: Linux kernel:A use-after-free in bridge multicast in br_multicast_port_ctx_init CVE-2026-23001 — kernel: macvlan: fix possible UAF in macvlan_forward_source()

🔗 References (5)

selfhttps://access.redhat.com/errata/RHSA-2026:5197
externalhttps://access.redhat.com/security/updates/classification/#moderate
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2378981
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2432664
selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_5197.json