Software Supply Chain Security of Web3

Web3 applications, built on blockchain technology, manage billions of dollars in digital assets through decentralized applications dApps and smart contracts. These systems rely on complex, software supply chains that introduce significant security vulnerabilities. This paper examines the software...

microcode_ctl: From CVEorg collector

New Spectre-v2 attack classes have been discovered within CPU architectures that enable self-training exploitation of speculative execution within the same privilege domain. These novel techniques bypass existing hardware and software mitigations, including IBPB, eIBRS, and BHINO, by leveraging...

Stale Translation Lookaside Buffer (TLB) Entry Vulnerability

Summary An internally reported microcode bug in some EPYC™ AMD CPUs could allow a local admin-privileged attacker to run SEV-SNP Secure Encrypted Virtualization - Secure Nested Paging guests using stale TLB entries. This bug could allow SNP active vCPUs to reuse TLB entries from other virtual...

AMD StoreMi™ Vulnerabilities

Summary Researchers have reported potential vulnerabilities in AMD StoreMi™ technology which may allow escalation of privilege. AMD StoreMi™ technology was a tool for users looking to improve load time, boot time, file management, or system responsiveness. AMD StoreMi™ falls outside of the securi...

microcode_ctl: From CVEorg collector

New Spectre-v2 attack classes have been discovered within CPU architectures that enable self-training exploitation of speculative execution within the same privilege domain. These novel techniques bypass existing hardware and software mitigations, including IBPB, eIBRS, and BHINO, by leveraging...

kernel security update

4.18.0-553.83.1 - Update Oracle Linux certificates Kevin Lyons - Disable signing for aarch64 Ilya Okomin - Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list olkmodsigningkey.pem Orabug: 29539237 - Update x509.genkey Orabug: 24817676 - Conflict with shim-ia32 and...

Whisper Leak: A Side-Channel Attack on Large Language Models

Large Language Models LLMs are increasingly deployed in sensitive domains including healthcare, legal services, and confidential communications, where privacy is paramount. This paper introduces Whisper Leak, a side-channel attack that infers user prompt topics from encrypted LLM traffic by...

CISA Releases Two Industrial Control Systems Advisories

CISA released two Industrial Control Systems ICS. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. ICSA-25-303-01 International Standards Organization ISO 15118-2 ICSA-25-303-02 Hitachi Energy TropOS CISA encourages users an...

A deep dive into MUTZ

AtDEF CON 33, we shared our research into MapUrlToZone, a critical Windows security component that determines whether a given path is local, on the intranet, or on the broader Internet. This classification drives several security decisions across Windows, for example, preventing a CreateFile call...

USN-7848-1: AMD Microcode vulnerabilities

Oleksii Oleksenko, Cedric Fournet, Jana Hofmann, Boris Köpf, Stavros Volos, and Flavien Solt discovered that some AMD processors may allow an attacker to infer data from previous stores. A local attacker could possibly use this issue to expose sensitive information. This update provides the updat...

USN-7848-1 amd64-microcode vulnerabilities

Oleksii Oleksenko, Cedric Fournet, Jana Hofmann, Boris Köpf, Stavros Volos, and Flavien Solt discovered that some AMD processors may allow an attacker to infer data from previous stores. A local attacker could possibly use this issue to expose sensitive information. This update provides the updat...

CVE-2025-64102 Zitadel allows brute-forcing authentication factors

Zitadel is open-source identity infrastructure software. Prior to 4.6.0, 3.4.3, and 2.71.18, an attacker can perform an online brute-force attack on OTP, TOTP, and passwords. While Zitadel allows preventing online brute force attacks in scenarios like TOTP, Email OTP, or passwords using a lockout...

Missing Linux Kernel mitigations for 'VMScape' hardware vulnerability

The remote host is missing one or more known mitigations on Linux Kernel side for the referenced SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-onl...

Missing Linux Kernel mitigations for 'GhostWrite' hardware vulnerability

The remote host is missing one or more known mitigations on Linux Kernel side for the referenced SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-onl...

Compromising Trusted Execution Environments through DDR5 Memory Bus Interposition

Summary Researchers successfully executed a physical bus interposition attack targeting server-grade DDR5 memory, compromising the confidentiality of encrypted data during runtime. AMD does not plan to provide mitigations since physical vector attacks are out of scope for AMD SEV-SNP. as detailed...

Important: pcs

Issue Overview: Rack is a modular Ruby web server interface. In versions prior to 2.2.19, 3.1.17, and 3.2.2, Rack::Multipart::Parser buffers the entire multipart preamble bytes before the first boundary in memory without any size limit. A client can send a large preamble followed by a valid...

Siemens SIMATIC Devices Insufficient Psychological Acceptability (CVE-2024-35996)

cpu: Re-enable CPU mitigations by default for !X86 architectures This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 80900 C Tenable, Inc. include'compat.inc'; if description scriptid503468; scriptversion"1.2";...

RDSEED Failure on AMD “Zen 5” Processors

Summary AMD was notified of a bug in “Zen 5” processors that may cause the RDSEED instruction to return 0 at a rate inconsistent with randomness while incorrectly signaling success CF=1, indicating a potential misclassification of failure as success. This issue was initially reported publicly via...

AMD TPM Reference Implementation June 2025 Security Update

AMD has informed HP of a potential security vulnerability identified in AMD Firmware TPM fTPM, which might allow information disclosure and/or denial of service. AMD has released Platform Initialization PI firmware to mitigate the vulnerability. AMD has released updates to mitigate the potential...

Pixnapping: Bringing Pixel Stealing out of the Stone Age

Pixel stealing attacks enable malicious websites to leak sensitive content displayed in victim websites. The idea, introduced by Stone in 2013, is to embed victim websites in iframes and use SVG filters to compute on, and create side channels as a function of, those websites' pixels. Fortunately,...