What is RHSA-2026:36956?

RHSA-2026:36956 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-2026:36956 cover?

RHSA-2026:36956 covers the following CVE IDs: CVE-2025-71066, CVE-2026-46113, CVE-2026-46227, CVE-2026-53359. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:36956?

RHSA-2026:36956 has a CVSS v3 base score of 7.8, published by Red Hat Product Security.

RHSA-2026:36956HighCVSS 7.8

Red Hat Security Advisory: kernel security update

Vendor

Red Hat Product Security

Published

July 9, 2026

Last Modified

July 15, 2026

🔗 CVE IDs covered (4)

CVE-2025-71066 →CVE-2026-46113 →CVE-2026-46227 →CVE-2026-53359 →

📋 Description

CVE-2025-71066 — kernel: net/sched: ets: Always remove class from active list before deleting in ets_qdisc_change CVE-2026-46113 — kernel: KVM: x86: Fix shadow paging use-after-free due to unexpected GFN CVE-2026-46227 — kernel: sctp: revalidate list cursor after sctp_sendmsg_to_asoc() in SCTP_SENDALL CVE-2026-53359 — kernel: KVM: x86: Fix shadow paging use-after-free due to unexpected role

🔗 References (7)

selfhttps://access.redhat.com/errata/RHSA-2026:36956
externalhttps://access.redhat.com/security/updates/classification/#important
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2429036
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2482564
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2482587
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2497033
selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_36956.json