VDB
RHSA-2026:54187
RHSA-2026:54187
PUBLISHED
CVSS 7.800000190734863 HIGH
A flaw was found in the Linux kernel on ARM processors. A race condition in Translation Lookaside Buffer Invalidation (TLBI) operations during memory permission changes allows a local attacker to write to memory resources owned by higher privilege levels. This could allow an unprivileged local attacker to gain kernel privileges or a guest VM to escape to the hypervisor, resulting in complete system compromise.
Risk Scores
CVSS 3.1
7.800000190734863
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | rhcos-x86_64-413.92.202608111330-0 as a component of Red Hat OpenShift Container Platform 4.13 | 413.92.202608111330-0 |
Timeline
- Aug 20, 2026 CVE Published
- Aug 24, 2026 CVE Updated
- Aug 24, 2026 Distribution Patch
- Aug 24, 2026 Distribution Patch
- Aug 24, 2026 Security Advisory
- Aug 24, 2026 Security Advisory
- Aug 24, 2026 Security Advisory
- Aug 24, 2026 Security Advisory
- Aug 24, 2026 Security Advisory
- Aug 24, 2026 Security Advisory
- Aug 24, 2026 Security Advisory
- Aug 24, 2026 Security Advisory
References
- https://access.redhat.com/errata/RHSA-2026:54187 advisory
- https://access.redhat.com/security/updates/classification/#important advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2406712 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2451094 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2468124 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2486958 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2496556 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2496581 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2497033 issue
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_54187.json advisory
- https://access.redhat.com/security/cve/CVE-2025-10263 advisory
- https://www.cve.org/CVERecord?id=CVE-2025-10263 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2025-10263 advisory
- https://developer.arm.com/documentation/112137 advisory
- https://access.redhat.com/security/cve/CVE-2025-40026 advisory
- https://www.cve.org/CVERecord?id=CVE-2025-40026 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2025-40026 advisory
- https://lore.kernel.org/linux-cve-announce/2025102841-CVE-2025-40026-760b@gregkh/T advisory
- https://access.redhat.com/security/cve/CVE-2026-14474 advisory
- https://www.cve.org/CVERecord?id=CVE-2026-14474 advisory
…and 17 more