What is RHSA-2026:36645?

RHSA-2026:36645 is a security advisory published by Red Hat Product Security with High severity. Red Hat Security Advisory: kernel update

Which CVE IDs does RHSA-2026:36645 cover?

RHSA-2026:36645 covers the following CVE IDs: CVE-2026-43074, CVE-2026-46242, CVE-2026-53266. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:36645?

RHSA-2026:36645 has a CVSS v3 base score of 7.5, published by Red Hat Product Security.

RHSA-2026:36645HighCVSS 7.5

Red Hat Security Advisory: kernel update

Vendor

Red Hat Product Security

Published

July 8, 2026

Last Modified

July 9, 2026

🔗 CVE IDs covered (3)

CVE-2026-43074 →CVE-2026-46242 →CVE-2026-53266 →

📋 Description

CVE-2026-43074 — kernel: eventpoll: defer struct eventpoll free to RCU grace period CVE-2026-46242 — kernel: eventpoll: fix ep_remove struct eventpoll / struct file UAF CVE-2026-53266 — kernel: Linux kernel: netfilter: ebtables SNAT target writes to shared memory pages during ARP hardware address rewrite

🔗 References (6)

selfhttps://access.redhat.com/errata/RHSA-2026:36645
externalhttps://access.redhat.com/security/updates/classification/#important
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2467019
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2483519
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2485368
selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_36645.json