What is RHSA-2026:0917?

RHSA-2026:0917 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-2026:0917 cover?

RHSA-2026:0917 covers the following CVE IDs: CVE-2025-21724, CVE-2025-37849, CVE-2025-37891, CVE-2025-40154, CVE-2025-40277. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:0917?

RHSA-2026:0917 has a CVSS v3 base score of 7.8, published by Red Hat Product Security.

RHSA-2026:0917MediumCVSS 7.8

Red Hat Security Advisory: kernel security update

Vendor

Red Hat Product Security

Published

January 21, 2026

Last Modified

June 30, 2026

🔗 CVE IDs covered (5)

CVE-2025-21724 →CVE-2025-37849 →CVE-2025-37891 →CVE-2025-40154 →CVE-2025-40277 →

📋 Description

CVE-2025-21724 — kernel: Linux kernel: iommufd/iova_bitmap shift-out-of-bounds vulnerability CVE-2025-37849 — kernel: KVM: arm64: Tear down vGIC on failed vCPU creation CVE-2025-37891 — kernel: Linux kernel: ALSA: ump buffer overflow via malformed UMP SysEx message CVE-2025-40154 — kernel: ASoC: Intel: bytcr_rt5640: Fix invalid quirk input mapping CVE-2025-40277 — kernel: drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE

🔗 References (8)

selfhttps://access.redhat.com/errata/RHSA-2026:0917
externalhttps://access.redhat.com/security/updates/classification/#moderate
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2348649
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2365271
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2367202
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2414494
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2419954
selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_0917.json