speculative execution

  1. CVE-2024-44931: Linux GPIO Speculative Read Patch and Azure Linux Attestation

    The Linux kernel fix for CVE-2024-44931 patches a small but security-sensitive bug in GPIO handling that could allow userspace to induce speculative reads outside a GPIO descriptor array, and Microsoft’s public advisory names Azure Linux as a product that “includes this open‑source library and...
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    • Forum: Security Alerts

  2. KVM VMX RSB Underflow Patch CVE-2022-49610: Strengthening Linux Hypervisors

    A small but consequential change to the Linux kernel’s KVM VMX path — registered as CVE‑2022‑49610 — closes a theoretical window where the CPU’s Return Stack Buffer (RSB) could underflow between the time the guest’s speculative-control state is set and the actual vmenter instruction, removing a...
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    • kvm security linux kernel speculative execution vmx patch
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    • Forum: Security Alerts

  3. CVE-2025-36357: Critical AMD Processor Vulnerability and How to Protect Your System

    In the ever-evolving landscape of cybersecurity, a new vulnerability has emerged that demands immediate attention: CVE-2025-36357, identified as a Transient Scheduler Attack targeting the Level 1 (L1) Data Queue in certain AMD processors. This flaw underscores the intricate challenges inherent...
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    • amd processor cve-2025-36357 cyber defense cyber threats cybersecurity firmware hardware security hardware vulnerabilities intel vs amd l1 data queue microcode updates os security processor security best practices security mitigation speculative execution system protection transient execution attacks vulnerability management
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    • Forum: Security Alerts

  4. Cache Timing Side-Channel Attacks Break Windows 11 KASLR: How Modern Exploits Evolve

    Cache timing side-channel attacks have re-emerged as a topic of grave concern for system security in recent months, and a new demonstration targeting fully patched Windows 11 installations underscores just how sophisticated modern exploitation techniques have become. The recent revelation that...
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    • cache attacks cache timing attacks cpu security cybersecurity hardware mitigations hardware vulnerabilities kaslr kernel exploitation memory randomization microarchitecture security microcode updates os security pre-fetch side-channel privilege escalation security research side-channel attacks speculative execution system hardening virtualization windows 11
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    • Forum: Windows News

  5. Intel Foreshadow vulnerability

    Intel has revealed another major security vulnerability in its CPUs, similar to the Meltdown/Spectre vulnerabilities revealed earlier this year. It is understood that at this time there are no current exploits and further information can be found on the released Link Removed . AMD chips are...
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    • amd cache cache timing cpu cybersecurity exploit hardware information disclosure intel l1tf meltdown mitigation processor security side-channel spectre speculative execution technology vulnerability
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    • Forum: Windows Hardware

  6. Speculative Execution Bounty Launch

    Today, Microsoft is announcing the launch of a limited-time bounty program for speculative execution side channel vulnerabilities. This new class of vulnerabilities was disclosed in January 2018 and represented a major advancement in the research in this field. In recognition of that threat...
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    • attack techniques bounty program bounty tiers coordinated disclosure cve-2017-5715 cve-2017-5753 microsoft microsoft azure mitigation payouts research security research speculative execution threat landscape tier 1 tier 2 tier 3 tier 4 vulnerabilities windows 10
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    • Forum: Security Alerts

  7. KB4090007: Intel microcode updates

    Intel release updates for Spectre on 6th generation (Skylake) chips: Intel Link Removed that they have completed their validations and started to release microcode for newer CPU platforms around Spectre Variant 2 (CVE 2017-5715 (“Branch Target Injection”)). This update includes microcode...
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    • cpu cve-2017-5715 fall creators update guidance intel manufacturer microcode microsoft update catalog mitigation patch registry rtm security skylake spectre speculative execution update vulnerabilities windows 10 windows server
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    • Forum: Software Updates

  8. Mitigating speculative execution side-channel attacks in Microsoft Edge and Internet Explorer

    Today, Google Project Zero published details of a class of vulnerabilities which can be exploited by speculative execution side-channel attacks. These techniques can be used via JavaScript code running in the browser, which may allow attackers to gain access to memory in the attacker’s process...
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    • attack prevention browser security cpu cache fall creators internet explorer javascript john hazen kb4056890 memory access microsoft edge mitigation performance project zero security updates sharedarraybuffer side-channel speculative execution update vulnerabilities windows 10
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