Newely discovered AMD CPU flaw highlights the risk of running multiple VMs


A newly discovered vulnerability in AMD chips allows malicious actors to perform remote code execution (RCE) and privilege escalation in virtual machines.

Cybersecurity researchers from the CISPA Helmholtz Center for Information Security in Germany detailed a vulnerability they named StackWarp, a hardware vulnerability in AMD CPUs that breaks the protections of confidential virtual machines, by manipulating how the processor tracks the stack, and letting a malicious insider or hypervisor change program flow or read sensitive data inside a protected VM.

Read more…
Source: Techradar News


Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox


Related:

  • Critical Buffer Overflow in Palo Alto Networks PAN-OS User-ID Authentication Portal (CVE-2026-0300)

    May 6, 2026

    On May 6, 2026, Palo Alto Networks published a security advisory for CVE-2026-0300, a critical unauthenticated buffer overflow vulnerability affecting PAN-OS PA-Series and VM-Series firewall appliances. Prisma Access, Cloud NGFW, and Panorama appliances are not affected by this vulnerability. The vulnerability carries a CVSSv4 score of 9.3 and has been confirmed as exploited in the wild ...

  • Update WhatsApp now: Two new flaws could expose you to malicious files

    May 5, 2026

    Meta has published a new security advisory for messaging app WhatsApp, announcing patches for two vulnerabilities. WhatsApp has fixed two security flaws that could be abused to interfere with how media and attachments are handled on your device. There is no evidence that either bug has been exploited in the wild. These bugs don’t automatically infect ...

  • Children say they can beat age checks by drawing on a fake mustache

    May 4, 2026

    It’s been months since the UK government began requiring stronger age checks under the Online Safety Act, and recent research suggests those measures are falling short of keeping kids away from harmful content. In some cases, even drawing on a mustache has been reported as enough to fool age detection software. Like keeping booze away from ...

  • ASD: Careful Adoption of Agentic AI Services

    May 1, 2026

    Agentic artificial intelligence (AI) systems increasingly operate across critical infrastructure and defence sectors and support mission-critical capabilities. As agentic AI systems play a growing operational role, it is crucial for defenders to implement security controls to protect national security and critical infrastructure from agentic AI-specific risks. Agentic AI can automate repetitive, well-defined and low-risk tasks. However, ...

  • Copy Fail vulnerability allows attackers to gain root access on virtually any modern Linux distribution

    April 30, 2026

    A working exploit written in Python (later released in other programming languages as well) consists of about ten lines of code and uses standard system calls that are indistinguishable from normal system activity. Kaspersky explain what the CVE-2026-31431 vulnerability, unofficially named as Copy Fail and published on April 29, is. Kaspersky also have some advice on ...

  • Nasty cPanel vulnerability probably exploited as a 0-day

    April 30, 2026

    Emergency patches are available for a critical vulnerability in cPanel and WHM that allows attackers to bypass authentication and gain root access to servers managed using it. Given that cPanel and WebHost Manager (WHM) control panel help manage properties for 70 million domains, by some estimates, and the critical severity of CVE-2026-41940 (9.8), the vulnerability is ...