What is RHSA-2026:27729?

RHSA-2026:27729 is a security advisory published by Red Hat Product Security with Critical severity. Red Hat Security Advisory: kernel security, bug fix, and enhancement update

What is the CVSS v3 score of RHSA-2026:27729?

RHSA-2026:27729 has a CVSS v3 base score of 8.8, published by Red Hat Product Security.

RHSA-2026:27729CriticalCVSS 8.8

Red Hat Security Advisory: kernel security, bug fix, and enhancement update

Vendor

Red Hat Product Security

Published

June 22, 2026

Last Modified

July 6, 2026

🔗 CVE IDs covered (6)

CVE-2026-23243 →CVE-2026-43037 →CVE-2026-43110 →CVE-2026-43158 →CVE-2026-43190 →CVE-2026-46243 →

📋 Description

CVE-2026-23243 — kernel: Linux kernel: Denial of service and memory corruption in RDMA umad CVE-2026-43037 — kernel: ip6_tunnel: clear skb2->cb[] in ip4ip6_err() CVE-2026-43110 — kernel: wifi: brcmfmac: validate bsscfg indices in IF events CVE-2026-43158 — kernel: xfs: fix freemap adjustments when adding xattrs to leaf blocks CVE-2026-43190 — kernel: netfilter: xt_tcpmss: check remaining length before reading optlen CVE-2026-46243 — kernel: Linux kernel: smb: client: reject userspace cifs.spnego descriptions

🔗 References (9)

selfhttps://access.redhat.com/errata/RHSA-2026:27729
externalhttps://access.redhat.com/security/updates/classification/#critical
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2448594
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2464351
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2467014
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2467064
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2467210
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2481486
selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_27729.json