Patching Archives

AppWizard

July 23, 2026

Building a True Per-App Android Device Spoofer

Device spoofing in Android applications allows developers to manipulate device information, primarily through altering android.os.Build attributes. Existing spoofer applications often fail to modify native system API calls that retrieve genuine device information. Tweaks is a per-app spoofer integrated into AOSP and LineageOS, which changes device properties by modifying memory-mapped files under /dev/properties. It uses a private mount namespace to bind-mount modified property-context files, ensuring only the targeted application receives spoofed values while the rest of the system remains unaffected. The Tweaks app, which is platform-signed, communicates with the TweaksManagerService to write configurations and manage property overrides. The core functionality is handled by propgen, which generates property context files with spoofed values by identifying and patching properties in place. The TweaksManagerService ensures secure interactions and content-addresses generated property areas to allow sharing among apps with identical overrides. The spawn path in ProcessList.startProcess determines whether to apply spoofing based on conditions evaluated by the TweaksLocalService. Security is maintained through SELinux policies, which restrict access to spoofable properties. However, certain elements, such as /proc/self/mountinfo and /system/build.prop, still reveal authentic device information despite the spoofing capabilities of Tweaks. The source code for Tweaks and related patches is available for public access.

Tech Optimizer

July 22, 2026

Migrating mission-critical payments at Nubank to Amazon Aurora PostgreSQL

Nubank, a digital banking platform with approximately 135 million customers in Brazil, Mexico, and Colombia, faced challenges with its payment infrastructure due to inefficiencies in managing 7.5 TB of self-hosted PostgreSQL databases. Queries took over 13 minutes to execute, and replication lags exceeded four minutes during peak times. To address these issues, Nubank evaluated database solutions based on developer productivity, operational efficiency, performance reliability, and scalability. They selected Amazon Aurora PostgreSQL-Compatible Edition for its compatibility, performance improvements, and automated features. The migration to Aurora was facilitated by AWS Database Migration Service (AWS DMS), which minimized downtime and allowed for efficient transition. Post-migration, query performance improved significantly, with some queries executing up to 1,900 times faster, and overall end-to-end service latency decreased, enhancing customer experience. The migration resulted in a 25 percent cost reduction and ensured compliance with regulatory requirements.

Winsage

July 21, 2026

Microsoft Releases New Windows 11 Security Update Fix For Dell Users

Microsoft has released an emergency out-of-band security update (KB5121767) for Windows 11 versions 25H2 and 24H2 due to performance issues caused by the July Patch Tuesday update (KB5101650) affecting certain Dell devices. The issues include system shutdowns, stemming from a conflict between the Windows USB-C Connection Manager and the Intel Innovation Platform Framework Processor Participant driver. Confirmed affected Dell models include the Dell Pro Max 14 Premium MA14250, Dell Pro Max 16 Premium MA16250, Dell XPS 17 9720, and Dell XPS 17 9730. The update is specifically for users of these devices experiencing performance-related issues, and Microsoft stated that no action is required for unaffected devices.

Winsage

July 18, 2026

Windows 11 Secure Boot certificates have expired, and Microsoft says what to do next

Microsoft held its OEM Secure Boot Office Hours event on July 15, where engineers collaborated with OEM representatives from companies like Acer, Asus, Cisco, Dell, and HP. IT administrators were able to ask live questions about the Secure Boot 2023 rollout. The discussion thread became a detailed technical record, especially following the expiration of the first certificates three weeks prior. Concerns raised by IT admins included BitLocker recovery loops, stuck confidence ratings, and unhelpful Intune error codes. Key facts include: - Devices offline for long periods will still receive the 2023 certificates upon reconnecting to Windows Update. - Devices with existing 2023 certificates in firmware will switch to the new boot manager after the latest Windows patches are installed. - A new script, Detect-SecureBootCertUpdateStatus.ps1, is available in Windows for checking certificate status. - BIOS updates may reset a device’s confidence rating to unrated, which is normal and does not indicate certificate failure. - Admins should edit the AvailableUpdates registry key, not the AvailableUpdatesPolicy, which is managed by Intune and Group Policy. - A licensing bug affecting AvailableUpdatesPolicy on devices upgraded from Pro to Enterprise was resolved by Microsoft in 2026. - BitLocker recovery is not typically linked to the certificate update process but may relate to firmware or PCR issues. - Dell and HP provided guidance on which BIOS versions include the 2023 certificates for their newer models. - Older HP EliteBook 840 G5 units require a manual update package for the new certificates. - Eligible devices can still receive the 2023 certificates in the future, and Surface devices released from 2024 onward come pre-equipped with them. - Microsoft confirmed that devices running 2011 certificates will not lose the ability to receive the 2023 chain. - The Microsoft Corporation KEK CA 2011 and Microsoft UEFI CA 2011 certificates have expired, with the Microsoft Windows Production PCA 2011 set to expire on October 19, 2026.

AppWizard

July 18, 2026

After 15 years, I’ve got Microsoft’s shunned Fable 3 port to work on PC – and it feels like a new RPG

The author reflects on their experience with Fable 3, suggesting it feels fresh despite being a 16-year-old RPG. They express concerns about the future of the Fable series, particularly Fable 4, in light of rising console prices and recent layoffs at Microsoft. The author highlights the visual appeal of Fable 3 when played on a modern PC setup, noting the game's charm and the enhanced graphics at 4K resolution. They emphasize the importance of preserving gaming experiences and worry that new players may not access the superior PC version of Fable 3. The author questions whether Microsoft might release an updated version of the game in the future.

Winsage

July 16, 2026

Nightmare Eclipse Drops ‘LegacyHive’ Windows Zero-Day

A security researcher known as Nightmare Eclipse has revealed a new unpatched vulnerability in Windows, named LegacyHive, which is a local privilege escalation flaw in the Windows User Profile Service. This vulnerability allows attackers to access and load user hives of other accounts, including administrators. Nightmare Eclipse has provided proof-of-concept exploit code that works on systems with Microsoft's July 2026 patches. The exploit initially did not require user credentials but now necessitates them for accessing other hives. Nightmare Eclipse has previously disclosed over half a dozen zero-day vulnerabilities affecting Microsoft products. Microsoft has not yet acknowledged the LegacyHive exploit.

Winsage

July 16, 2026

Windows Netlogon Flaw CVE-2026-41089: CVSS 9.8 [2026]

CVE-2026-41089 is a critical vulnerability in the Windows Netlogon service, rated 9.8 on the CVSS scale, allowing unauthenticated attackers to execute arbitrary code with SYSTEM-level privileges on domain controllers. It affects all supported versions of Windows Server configured as domain controllers, from Windows Server 2012 R2 to the latest release. Microsoft addressed this vulnerability on May 12, 2026, during a broader update that included 138 fixes, but it went largely unnoticed until early June when active exploitation was confirmed. The vulnerability is characterized as a stack-based buffer overflow and is considered "wormable" due to its ability to self-propagate across systems without user intervention. Organizations are advised to patch all domain controllers and audit network access to mitigate exposure.

Winsage

July 15, 2026

Researcher Drops New Windows Zero-Day PoC Hours After Microsoft Patch Tuesday

Security researcher Chaotic Eclipse has released a proof-of-concept exploit called LegacyHive, which targets a vulnerability in the Windows User Profile Service. The exploit requires standard user credentials and a third username, potentially an administrator account. It can mount the target user hive in the current user classes root and is designed to reduce the risk of public exploitation. The exploit works across all supported desktop and server versions of Windows, including those updated with the July 2026 Patch Tuesday release. Microsoft is investigating the findings related to LegacyHive. Microsoft has patched 622 vulnerabilities, including two privilege escalation flaws in SharePoint Server (CVE-2026-56164, CVSS score: 5.3) and Active Directory Federation Services (CVE-2026-56155, CVSS score: 7.8), which are actively exploited threats. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has included these vulnerabilities in its Known Exploited Vulnerabilities catalog, requiring Federal Civilian Executive Branch agencies to implement fixes by specified deadlines. CISA has also noted active exploitation of several SharePoint Server vulnerabilities, including CVE-2026-32201, CVE-2026-45659, and CVE-2026-56164, which allow unauthorized access to vulnerable instances. CVE-2026-56164 enables attackers to send crafted network requests to access functions that should require authorization, leading to privilege escalation without prior authentication. Additionally, CVE-2026-55040 (CVSS score: 9.1) allows remote unauthenticated attackers to bypass authentication on a vulnerable SharePoint server, enabling unauthorized operations.

Winsage

July 14, 2026

Windows 11’s big patch Tuesday allows you to hold off on updates for longer

Microsoft has introduced enhancements for Windows 11, including the ability to pause updates indefinitely, allowing users to delay updates for up to 35 days with the option to extend this deadline. The update also addresses several security vulnerabilities using artificial intelligence for identification and patching. Additional features include a "Point-in-time restore" option, customization options for Widgets, a more precise magnification tool, and improved stability for certain Bluetooth devices.

Winsage

July 13, 2026

Microsoft expands AI-powered Windows security

AI-driven security tools are enhancing Microsoft's ability to detect vulnerabilities earlier, improving the speed of Windows security responses. Microsoft is integrating AI into its Windows security strategy to expedite the discovery, analysis, and remediation of vulnerabilities in its software development process. This integration allows security teams to identify potential issues more quickly across large codebases, reducing the time between vulnerability identification and protective measures implementation. The updated strategy combines AI-powered security analysis tools with advanced multi-model agentic scanning systems to detect, validate, and prioritize high-confidence risks. Microsoft is also incorporating AI into engineering workflows to assist developers in investigating issues, recommending fixes, and enhancing testing, while ensuring human oversight. The company is investing in automated patching, vulnerability management, and deployment tools to facilitate efficient application of security updates. This approach reflects a shift towards continuous, AI-assisted security engineering, moving away from traditional periodic security updates.