CVE-2026-53277

Last refreshed2026-10-23

Status: UPDATED | Advisory ID: CVE-2026-53277

Key Details

CVE	CVE-2026-53277
CVSS Score / Version	8.8 (High) / CVSS v3.1
Updated	2026-10-21
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is changed; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel and Red Hat Enterprise Linux 10
Classified as	CWE-662 (Improper Synchronization)

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel
Red Hat	Red Hat Enterprise Linux 10

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Red Hat

Red Hat Enterprise Linux 10

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

In the Linux kernel, the following vulnerability has been resolved:

KVM: arm64: Take the SRCU lock for page table walks in fault injection and AT emulation

walk_s1() and kvm_walk_nested_s2() expect to be called while holding

kvm->srcu to guard against memslot changes. While this is generally

the case, __kvm_at_s12() and __kvm_find_s1_desc_level() call into the

respective walkers without taking kvm->srcu.

Fix by acquiring kvm->srcu prior to the table walk in both instances. (NVD)

Monitor Linux's and Red Hat's web pages for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-53277
CVE	https://www.cve.org/CVERecord?id=CVE-2026-53277

Source

Reference

NVD

CVE