VDB
RHSA-2026:53990
RHSA-2026:53990
PUBLISHED
CVSS 8.100000381469727 HIGH
A flaw was found in AMD Zen 2-based processors, affecting components such as the kernel and Xen hypervisor. Improper isolation of shared resources within the CPU operation cache could allow an attacker to corrupt instructions executed at a different privilege level. This could potentially result in privilege escalation, granting an attacker higher system access than intended.
Risk Scores
CVSS 3.1
8.100000381469727
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | kernel-debuginfo-0:5.14.0-570.134.1.el9_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6) | 5.14.0-570.134.1.el9 |
| Red Hat | kernel-debug-devel-matched-0:5.14.0-570.134.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 5.14.0-570.134.1.el9 |
| Red Hat | kernel-64k-debug-modules-0:5.14.0-570.134.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6) | 5.14.0-570.134.1.el9 |
| Red Hat | kernel-tools-0:5.14.0-570.134.1.el9_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6) | 5.14.0-570.134.1.el9 |
| Red Hat | python3-perf-debuginfo-0:5.14.0-570.134.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux Real Time EUS (v.9.6) | 5.14.0-570.134.1.el9 |
| Red Hat | kernel-debug-debuginfo-0:5.14.0-570.134.1.el9_6.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 5.14.0-570.134.1.el9 |
| Red Hat | kernel-devel-matched-0:5.14.0-570.134.1.el9_6.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 5.14.0-570.134.1.el9 |
| Red Hat | kernel-0:5.14.0-570.134.1.el9_6.src as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6) | 5.14.0-570.134.1.el9 |
| Red Hat | kernel-rt-core-0:5.14.0-570.134.1.el9_6.x86_64 as a component of Red Hat Enterprise Linux Real Time EUS (v.9.6) | 5.14.0-570.134.1.el9, 5.14.0-570.134.1.el9 |
| Red Hat | kernel-zfcpdump-core-0:5.14.0-570.134.1.el9_6.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6) | 5.14.0-570.134.1.el9, 5.14.0-570.134.1.el9 |
| Red Hat | kernel-64k-debuginfo-0:5.14.0-570.134.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 5.14.0-570.134.1.el9, 5.14.0-570.134.1.el9 |
| Red Hat | kernel-debug-debuginfo-0:5.14.0-570.134.1.el9_6.x86_64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.6) | 5.14.0-570.134.1.el9, 5.14.0-570.134.1.el9 |
| Red Hat | kernel-debuginfo-0:5.14.0-570.134.1.el9_6.x86_64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.6) | 5.14.0-570.134.1.el9, 5.14.0-570.134.1.el9 |
| Red Hat | kernel-rt-debug-modules-extra-0:5.14.0-570.134.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux Real Time EUS (v.9.6) | 5.14.0-570.134.1.el9, 5.14.0-570.134.1.el9 |
| Red Hat | kernel-64k-debug-modules-core-0:5.14.0-570.134.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6) | 5.14.0-570.134.1.el9, 5.14.0-570.134.1.el9 |
| Red Hat | kernel-debug-debuginfo-0:5.14.0-570.134.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6) | 5.14.0-570.134.1.el9, 5.14.0-570.134.1.el9 |
| Red Hat | kernel-64k-debug-devel-matched-0:5.14.0-570.134.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 5.14.0-570.134.1.el9, 5.14.0-570.134.1.el9 |
| Red Hat | kernel-64k-devel-matched-0:5.14.0-570.134.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 5.14.0-570.134.1.el9, 5.14.0-570.134.1.el9 |
| Red Hat | kernel-debuginfo-0:5.14.0-570.134.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.6) | 5.14.0-570.134.1.el9, 5.14.0-570.134.1.el9 |
| Red Hat | rv-0:5.14.0-570.134.1.el9_6.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.6) | 5.14.0-570.134.1.el9, 5.14.0-570.134.1.el9 |
…and 286 more
Timeline
- Aug 12, 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
References
- https://access.redhat.com/errata/RHSA-2026:53990 advisory
- https://access.redhat.com/security/updates/classification/#important advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2467015 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2477784 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2492851 issue
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_53990.json advisory
- https://access.redhat.com/security/cve/CVE-2025-54518 advisory
- https://www.cve.org/CVERecord?id=CVE-2025-54518 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2025-54518 advisory
- http://www.openwall.com/lists/oss-security/2026/05/12/15 advisory
- http://xenbits.xen.org/xsa/advisory-490.html advisory
- https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-7052.html advisory
- https://access.redhat.com/security/cve/CVE-2026-43112 advisory
- https://www.cve.org/CVERecord?id=CVE-2026-43112 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-43112 advisory
- https://lore.kernel.org/linux-cve-announce/2026050625-CVE-2026-43112-f37f@gregkh/T advisory
- https://access.redhat.com/security/cve/CVE-2026-53264 advisory
- https://www.cve.org/CVERecord?id=CVE-2026-53264 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-53264 advisory
- https://lore.kernel.org/linux-cve-announce/2026062517-CVE-2026-53264-081f@gregkh/T advisory