CVE-2025-0033

Improper access control within AMD SEV-SNP could allow an admin privileged attacker to write to the RMP during SNP initialization, potentially resulting in a loss of SEV-SNP guest memory integrity...

Physical Address Bit Leakage on AMD SEV-SNP Systems

Revisions Revision Date| Description ---|--- 2025-10-20| Initial publication...

CVE-2025-0033

Improper access control within AMD SEV-SNP could allow an admin privileged attacker to write to the RMP during SNP initialization, potentially resulting in a loss of SEV-SNP guest memory integrity...

RMPocalypse: Single 8-Byte Write Shatters AMD's SEV-SNP Confidential Computing

Chipmaker AMD has released fixes to address a security flaw dubbed RMPocalypse that could be exploited to undermine confidential computing guarantees provided by Secure Encrypted Virtualization with Secure Nested Paging SEV-SNP. The attack, per ETH Zürich researchers Benedict Schlüter and Shweta...

AMD CVE-2025-0033: RMP Corruption During SNP Initialization

Microsoft is aware of AMD-SB-3020 | CVE-2025-0033 disclosed by AMD on October 13, 2025. CVE-2025-0033 is a vulnerability in AMD EPYC processors using Secure Encrypted Virtualization – Secure Nested Paging SEV-SNP. It involves a race condition during Reverse Map Table RMP initialization that could...

PT-2025-41795

Name of the Vulnerable Software and Affected Versions AMD EPYC and EPYC Embedded series processors versions prior to BIOS updates from OEM partners AMD EPYC processors using Secure Encrypted Virtualization – Secure Nested Paging SEV-SNP affected versions not specified Description A critical issue...

EUVD-2020-7554

Malware in sbrugna...

EUVD-2021-13215

Malware in sbrugna...

New $50 Battering RAM Attack Breaks Intel and AMD Cloud Security Protections

A group of academics from KU Leuven and the University of Birmingham has demonstrated a new vulnerability called Battering RAM to bypass the latest defenses on Intel and AMD cloud processors. "We built a simple, $50 interposer that sits quietly in the memory path, behaving transparently during...

CVE-2024-36331

Improper initialization of CPU cache memory could allow a privileged attacker with hypervisor access to overwrite SEV-SNP guest memory resulting in loss of data integrity...

CVE-2024-36331

Improper initialization of CPU cache memory could allow a privileged attacker with hypervisor access to overwrite SEV-SNP guest memory resulting in loss of data integrity...

x86/sev: Evict cache lines during SNP memory validation

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Linux Distros Unpatched Vulnerability : CVE-2024-36331

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Improper initialization of CPU cache memory could allow a privileged attacker with hypervisor access to overwrite SEV-SNP guest memory resulting in loss of data...

Linux Distros Unpatched Vulnerability : CVE-2020-15567

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - An issue was discovered in Xen through 4.13.x, allowing Intel guest OS users to gain privileges or cause a denial of service because of non-atomic modification ...

PT-2025-46738

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.16.0-rc7+ Description The Linux kernel contained a flaw related to memory mapping within KVM when running as a Secure Nested Paging SNP or Trusted Execution Technology TDX guest. Specifically, the legacy PCI...

CVE-2025-38560

In the Linux kernel, the following vulnerability has been resolved: x86/sev: Evict cache lines during SNP memory validation An SNP cache coherency vulnerability requires a cache line eviction mitigation when validating memory after a page state change to private. The specific mitigation is to tou...

CVE-2025-38560 x86/sev: Evict cache lines during SNP memory validation

In the Linux kernel, the following vulnerability has been resolved: x86/sev: Evict cache lines during SNP memory validation An SNP cache coherency vulnerability requires a cache line eviction mitigation when validating memory after a page state change to private. The specific mitigation is to tou...

CVE-2025-38560

In the Linux kernel, the following vulnerability has been resolved: x86/sev: Evict cache lines during SNP memory validation An SNP cache coherency vulnerability requires a cache line eviction mitigation when validating memory after a page state change to private. The specific mitigation is to tou...

CVE-2025-38506

In the Linux kernel, the following vulnerability has been resolved: KVM: Allow CPU to reschedule while setting per-page memory attributes When running an SEV-SNP guest with a sufficiently large amount of memory 1TB+, the host can experience CPU soft lockups when running an operation in...

CVE-2025-38508

In the Linux kernel, the following vulnerability has been resolved: x86/sev: Use TSCFACTOR for Secure TSC frequency calculation When using Secure TSC, the GUESTTSCFREQ MSR reports a frequency based on the nominal P0 frequency, which deviates slightly typically 0.2% from the actual mean TSC...