elevated privileges Archives

Winsage

August 16, 2026

LeakWatch CW 33/2026: Windows Zero-Day, AMD, Intel and Malware

- The August Patch Tuesday release included 421 vulnerabilities, with 236 affecting Windows, highlighting CVE-2026-68820, a critical use-after-free vulnerability that allows privilege escalation to SYSTEM level without user interaction. - CISA added CVE-2026-68820 to its Known Exploited Vulnerabilities Catalog, confirming its active exploitation. - AMD's Ryzen Master software has vulnerabilities, including CVE-2025-54512 (DLL hijacking) and CVE-2026-0465 (use-after-free), which could allow code execution with elevated privileges. - AMD's advisory on CVE-2026-6726 and CVE-2026-6727 indicates vulnerabilities in the TPM 2.0 reference code affecting Ryzen platforms, leading to potential information disclosure. - Intel's advisories included updates for microcode, Wi-Fi software, and NPU drivers, with CVE-2026-20760 addressing privilege escalation risks. - Google’s Chrome update on August 11 fixed five high-severity vulnerabilities, including use-after-free flaws. - Gunra malware has evolved into a ransomware-as-a-service model using a double-extortion strategy. - WindRelay malware combines SpyNote RAT with an NFC relay component, allowing attackers to relay NFC communication between a victim's bank card and a remote device. - The findings emphasize the need to view vulnerabilities as part of potential attack chains, highlighting the complexity of modern cybersecurity threats.

Winsage

August 13, 2026

Microsoft’s August update fixes a Windows flaw that’s already being attacked

The upcoming Patch Tuesday is scheduled for September 8th, 2026, during which Microsoft will address over 200 vulnerabilities across Windows platforms, including Windows 10, Windows 11, and Windows Server. Windows 10 users in the Extended Security Updates (ESU) program will receive updates until October 2027. Among the vulnerabilities, CVE-2026-68820 allows attackers to gain elevated privileges through the Windows auxiliary function driver for Winsock. Microsoft has identified 18 vulnerabilities as critical, including CVE-2026-62878, an RCE vulnerability in the Windows DNS server that can lead to a buffer overflow and code execution without user interaction. Another critical issue is CVE-2026-62893, a UAF vulnerability in the TFTP server of Windows Deployment Services, which allows code injection through UDP port 69. Additionally, CVE-2026-62815, an RCE vulnerability in Quick UDP Internet Connections (QUIC), permits code execution without user interaction, while CVE-2026-59124, although high risk, is not classified as critical due to the HPC Pack not being enabled by default.

Winsage

August 12, 2026

ShieldBreak: New Windows Zero-Day Bypasses Microsoft’s RoguePlanet Patch

Chaotic Eclipse, a security researcher, has revealed a proof-of-concept (PoC) for a new vulnerability called ShieldBreak, which is a zero-day flaw in Microsoft Defender that bypasses the patch for the previously identified CVE-2026-50656 (RoguePlanet). This vulnerability could allow attackers to execute code at the SYSTEM level on affected Windows systems. Chaotic Eclipse tested the PoC on the latest versions of Windows 11 and Windows Server 2025, achieving a 100% success rate. Windows 10 and its server editions are not supported by the PoC but remain vulnerable. Microsoft had issued security updates for RoguePlanet, which has a CVSS score of 7.8, affecting the Malware Protection Engine and representing a local privilege escalation issue. Chaotic Eclipse has previously disclosed two other zero-day vulnerabilities, YellowKey and GreenPlasma, which affect BitLocker and the Windows Collaborative Translation Framework, respectively. Microsoft criticized the public disclosure of these vulnerabilities as irresponsible and emphasized the importance of Coordinated Vulnerability Disclosure.

Winsage

August 4, 2026

Microsoft Expands Windows Hello ESS to External Fingerprint Readers

Microsoft is integrating Windows Hello Enhanced Sign-in Security (ESS) with compatible external fingerprint readers, allowing passwordless sign-ins on a wider range of Windows 11 devices. This update enhances biometric authentication security by utilizing hardware-backed protections such as the Trusted Platform Module (TPM) and Virtualization-Based Security (VBS), which isolate sensitive biometric data from malware and unauthorized access. Previously, only devices with integrated fingerprint sensors could fully utilize ESS, but the recent update (KB5101684) enables external fingerprint readers to function within the ESS framework. The update is being rolled out for Windows 11 versions 25H2 and 24H2, and users can set up fingerprint authentication by connecting a compatible reader. This advancement aids IT administrators in implementing passwordless authentication while maintaining security protocols.

Winsage

August 1, 2026

Not sure whether to use Windows Hello or Enhanced Sign‑in Security? This breakdown makes the choice easy

Microsoft will introduce Enhanced Sign-in Security (ESS) in the August 2026 update for Windows 11, allowing support for compatible external fingerprint readers. ESS aims to enhance the security of the authentication process rather than improve the accuracy of biometric recognition. Unlike standard Windows Hello, which processes biometric authentication through the operating system, ESS utilizes Virtualization-Based Security (VBS) and Trusted Platform Module (TPM) 2.0 to isolate sensitive operations in a protected environment. ESS-compatible fingerprint readers have dedicated secure processors, store templates internally, and communicate with the operating system via encrypted channels. Users can enable ESS by navigating to Settings > Accounts > Sign-in options on their devices. If a device does not support ESS, standard Windows Hello remains a robust authentication option.

Winsage

June 27, 2026

New Millenium RAT version infects 62,000 Windows systems worldwide

A significant evolution of the Millenium remote access trojan (RAT) has impacted over 62,000 Windows devices across more than 160 countries. The latest version, 4.*, marks a departure from previous .NET-based versions and is attributed to a threat cluster known as Y2K Operators, with the creator identified as “ShinyEnigma.” There are 62,289 infected endpoints, with 39,730 infections occurring in the first quarter of 2026. The RAT is marketed as malware-as-a-service (MaaS) and promoted through underground forums and platforms like GitHub, with accessible pricing. Millenium RAT 4 is developed in native C++ and uses the Telegram Bot API for command-and-control communications. Its capabilities include stealing browser data, collecting system information, logging keystrokes, capturing screenshots and audio, accessing Telegram and Discord data, downloading additional payloads, and executing Windows or PowerShell commands. The malware ensures persistence by replicating itself in the %APPDATA% directory and creating an autorun registry entry. The malware is distributed through social engineering tactics such as cracked software, cryptocurrency utilities, hacking toolkits, OSINT tools, exploit builders, and Roblox-related cheats. Some campaigns have trojanized malware builders, infecting cybercriminals. One campaign used PDF-themed lures with a malicious Windows shortcut to download the RAT while displaying a legitimate document. Payloads often use filenames associated with Windows components or security software to blend into infected systems. Group-IB recommends avoiding untrusted executables, applying security updates, enabling multi-factor authentication, and monitoring for unusual autorun registry entries.

Tech Optimizer

June 22, 2026

pgAdmin 4 Released With Fixes for Seven Security Vulnerabilities and New Features

pgAdmin 4 version 9.16 has been released, featuring 64 bug fixes and addressing seven security vulnerabilities (CVE-2026-12044 to CVE-2026-12050). Key vulnerabilities include SQL injection flaws and cross-site scripting issues. CVE-2026-12044 involved SQL injection risks in dialog templates, while CVE-2026-12045 allowed attackers to bypass read-only transaction restrictions in the AI Assistant feature. Authentication issues were fixed in CVE-2026-12046, and client-side vulnerabilities were addressed in CVE-2026-12048 and CVE-2026-12047. Additional vulnerabilities included an open redirect in multi-factor authentication (CVE-2026-12049) and another SQL injection flaw in restore point functionality (CVE-2026-12050). Usability improvements include colorized panel headers, middle-click tab closing, and enhancements to OAuth2 login. The release supports new PostgreSQL storage parameters and includes dependency upgrades. Stricter access controls have been enforced, and pgAgent has been marked for removal. The update is available for download on multiple platforms.

Winsage

June 15, 2026

New Windows Zero‑Day Flaws Target Defender and BitLocker

A cybersecurity researcher known as “Nightmare Eclipse” has revealed two zero-day exploits threatening Windows systems: RoguePlanet and GreatXML. RoguePlanet targets Microsoft Defender, allowing attackers to execute privileged actions and gain SYSTEM-level access on Windows machines. It is a local privilege escalation vulnerability that remains effective on fully updated systems. GreatXML claims to bypass BitLocker disk encryption by manipulating the Windows Recovery Environment, potentially granting access to protected files. However, its effectiveness may be overstated, as it might require administrator-level access. Microsoft advises organizations to implement security updates, treat lost or accessible devices as high-risk, enforce stricter policies, and monitor threat intelligence to mitigate exposure to these vulnerabilities.

Winsage

June 5, 2026

Unofficial script lets you install unreleased Windows 11 features without Microsoft Account

Microsoft's Windows Insider Program allows users to preview upcoming features, requiring enrollment via a Microsoft account. OfflineInsiderEnroll is a third-party tool that enables access to Insider builds without a Microsoft account by configuring Insider settings locally. It uses a Registry value called TestFlags to prevent communication with Microsoft's enrollment services, allowing users to switch between preview channels. The latest version, 2.6.6, supports new Insider channels and retains functionalities for managing Insider settings. Elevated privileges are required to run the script, which can be downloaded from its official GitHub repository.

Tech Optimizer

May 21, 2026

CVE-2024-55638: Highly Critical Drupal Core Vulnerability Threatens PostgreSQL Sites with Remote Code Execution (RCE)

A critical vulnerability, CVE-2024-55638, has been identified in Drupal Core, affecting installations using PostgreSQL as their backend database. This vulnerability involves PHP Object Injection, which can lead to full Remote Code Execution (RCE) when combined with another deserialization flaw. It cannot be exploited independently but increases the risk for Drupal installations that use third-party modules or custom code that improperly employs the unserialize() function. The affected versions include Drupal Core 7.x prior to 7.102, 8.0.0 and above prior to 10.2.11, and 10.3.0 prior to 10.3.9, with patched versions being 7.102, 10.2.11, and 10.3.9. The vulnerability is particularly relevant for sites using PostgreSQL, and organizations are urged to upgrade to the patched versions and audit their code for unsafe unserialize() usage. Currently, there are no confirmed reports of exploitation in the wild, but the risk remains high due to insecure deserialization bugs in third-party modules. The EPSS score for this vulnerability is 9.93%, indicating a significant likelihood of exploitation in the near future.