kernel: xen: AMD Zen 2 Processors: Privilege escalation via improper CPU cache isolation

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 ...

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

An update for kernel is now available for Red Hat Enterprise Linux 9.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

kernel: xen: AMD Zen 2 Processors: Privilege escalation via improper CPU cache isolation

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 ...

kernel: xen: AMD Zen 2 Processors: Privilege escalation via improper CPU cache isolation

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 ...

CVE-2025-54518

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 ...

Linux Distros Unpatched Vulnerability : CVE-2025-54518

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Improper isolation of shared resources within the CPU operation cache on Zen 2-based products could allow an attacker to corrupt instructions executed at a...

SUSE CVE-2025-54518

Improper isolation of shared resources within the CPU operation cache on Zen 2-based products could allow an attacker to corrupt instructions executed at a different privilege level, potentially resulting in privilege escalation...

ALPINE-CVE-2025-54518

Improper isolation of shared resources within the CPU operation cache on Zen 2-based products could allow an attacker to corrupt instructions executed at a different privilege level, potentially resulting in privilege escalation...

CVE-2025-54518

CVE-2025-54518 describes an issue in Zen 2-based CPUs where improper isolation of shared resources in the CPU operation cache could allow a local attacker to corrupt instructions executed at a different privilege level, potentially enabling privilege escalation. The vulnerability affects Zen 2 mi...

CPU OP Cache Corruption

CVE Details Refer to Glossary for explanation of terms CVE| CVE Description| CVSS Score ---|---|--- CVE-2025-54518| Improper isolation of shared resources within the CPU operation cache on Zen 2-based products could allow an attacker to corrupt instructions executed at a different privilege level...

PT-2026-40778

Name of the Vulnerable Software and Affected Versions AMD Zen 2-based products affected versions not specified Description Improper isolation of shared resources within the CPU operation op/µop cache on Zen 2-based products can cause incorrect instructions to be executed at a higher privilege...

EUVD-2023-24772

Malicious code in bioql PyPI...

TencentOS Server 2: linux-firmware (TSSA-2023:0274)

The version of Tencent Linux installed on the remote TencentOS Server 2 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2023:0274 advisory. Package updates are available for TencentOS Server 2 that fix the following vulnerabilities...

Alibaba Cloud Linux 3 : 0123: linux-firmware (ALINUX3-SA-2023:0123)

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by a vulnerability as referenced in the ALINUX3-SA-2023:0123 advisory. Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities: CVE-2023-20593: An issue in Zen 2 CPUs, under...

New ZenHammer Attack Bypasses Rowhammer Defenses on AMD CPUs

Cybersecurity researchers from ETH Zurich have developed a new variant of the RowHammer DRAM dynamic random-access memory attack that, for the first time, successfully works against AMD Zen 2 and Zen 3 systems despite mitigations such as Target Row Refresh TRR. "This result proves that AMD system...

SUSE SLED15 / SLES15 / openSUSE 15 Security Update : spectre-meltdown-checker (SUSE-SU-2024:0884-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 / openSUSE 15 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2024:0884-1 advisory. - updated to 0.46 This release mainly focuses on the detection of the new Zenbleed CVE-2023-20593...

SUSE SLES12 Security Update : spectre-meltdown-checker (SUSE-SU-2024:0885-1)

The remote SUSE Linux SLES12 / SLESSAP12 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2024:0885-1 advisory. - updated to 0.46 This release mainly focuses on the detection of the new Zenbleed CVE-2023-20593 vulnerability, among few other changes tha...

CentOS 9 : kernel-5.14.0-350.el9

The remote CentOS Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the kernel-5.14.0-350.el9 build changelog. - The Linux kernel allows userspace processes to enable mitigations by calling prctl with PRSETSPECULATIONCTRL which disables the...

Nutanix AHV : Multiple Vulnerabilities (NXSA-AHV-20220304.480)

The version of AHV installed on the remote host is prior to 20220304.480. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AHV-20220304.480 advisory. - An issue in Zen 2 CPUs, under specific microarchitectural circumstances, may allow an attacker to potentially...

CentOS 8 : linux-firmware (CESA-2023:5245)

The remote CentOS Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CESA-2023:5245 advisory. - An issue in Zen 2 CPUs, under specific microarchitectural circumstances, may allow an attacker to potentially access sensitive information. CVE-2023-20593 Not...