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Four-Byte Write and Timing Bug Let Researchers Run Code in Windows SmartScreen Enclave

Security researchers ran their own code inside a protected part of Windows that is meant to stay sealed off even when the rest of the computer is taken over. The protected area is a VBS enclave, an isolated slice of memory the operating system uses to guard secrets, and the one they broke into handles passwords for a Windows anti-phishing feature. The work was done in a lab as a proof of

Microsoft Patches Record 1,413 Flaws, Including Exploited Windows Shell Bug

Microsoft on Tuesday shattered its own Patch Tuesday record by shipping patches for a whopping 1,413 vulnerabilities, including one that it said has come under active exploitation. These include 1,102 flaws in Windows, 134 in Office, 61 in Developer Tools, 36 in SharePoint Server, and 22 in SQL Server. Of these, more than 670 relate to privilege escalation, followed by over 300 remote code

Security Alert: Microsoft Releases October 2026 Security Updates

Microsoft Patches More Than 1,400 Security Flaws

Microsoft today issued updates to fix more than 1,400 security vulnerabilities in its Windows operating systems and other software. Today's epic patch batch dwarfs September's record of nearly 1,000 fixes, which was already about ten times the normal monthly patch load from Redmond.

Zero-Days Lurk in Microsoft's Overgrown October Patch Tuesday

The scary surprises in the largest security update ever include defense bypasses and unauthenticated RCEs.

Microsoft Patch Tuesday for October 2026 — Snort rules and prominent vulnerabilities

Microsoft has released its monthly security update for October 2026, which includes 1415 vulnerabilities affecting a range of products, including 85 that Microsoft marked as "critical."

Microsoft October 2026 Patch Tuesday fixes 1,411 flaws, 3 zero-days

Today is Microsoft's October 2026 Patch Tuesday, with security updates addressing a record-breaking 1,411 flaws, including one actively exploited and two publicly disclosed zero-day vulnerabilities. [...]

Microsoft releases Windows 10 KB5126657 extended security update

Microsoft released the Windows 10 KB5126657 extended security update, which includes this month's record-breaking October 2026 Patch Tuesday fixes and a few bug fixes and changes. [...]

October 2026 Microsoft Patch Tuesday, (Tue, Oct 13th)

Microsoft today released patches for 1,417 vulnerabilities. 76 of these vulnerabilities are rated critical, with 7 critical vulnerabiilties requiring no customer actions. One vulnerability was disclosed before today's patch Tuesday, and one is already exploited.

Microsoft: Windows 11 24H2 Home and Pro reached end of support

Microsoft announced today that devices running Windows 11 24H2 Home and Pro editions have reached the end of support and will no longer receive monthly security and non-security preview updates. [...]

Anthropic Warns Small AI Models Could Soon Form Self-Propagating IoT Botnets

Small artificial intelligence (AI) models may be months away from developing capabilities to self-replicate on IoT devices like smart ovens and off-brand Android TV boxes, according to a warning from Anthropic. The frontier AI lab said small AI models could form autonomous, self-propagating worm botnets that are "challenging to shut down," since "there's no centralized point to shut off."

Windows 11 KB5127648 & KB5126653 cumulative updates released

Microsoft has released the Patch Tuesday Windows 11 KB5127648 and KB5126653 cumulative updates for versions 26H2/25H2/24H2 and 23H2 to fix security vulnerabilities and bugs, and add new features. [...]

GitHub Tightens npm Publishing After Flaw Left 1,500+ Packages Vulnerable to Hijacking

GitHub has taken the step of expiring unvalidated npm trusted publishing configurations 48 hours after creation after researchers found that it was possible for an attacker to push new versions of a different user's package without having to steal their credentials. "Your configuration becomes validated and exempt from expiry after its first successful publish," the Microsoft-owned subsidiary

The MFA Gaps Attackers are Still Exploiting

Attackers continue exploiting gaps in MFA coverage, using stolen credentials to access VPNs, RDP, and Windows systems that still rely on passwords alone. Specops explains why protecting cloud applications isn't enough and how organizations can close these authentication gaps. [...]

Xandr Fined a Record €8.6 Million for Relaying Grindr Data Revealing Sexual Orientation

The Norwegian Data Protection Authority (DPA) has fined Xandr, an advertising unit owned by Microsoft, €8.6 million ($9.62 million) for illegally relaying ​Grindr users' sensitive data to advertisers. The administrative penalty is the largest issued by the data protection watchdog, arguing the case merited a high fine because of the "very serious" nature of the breach. The infringements

Critical infrastructure orgs face heightened cyber risk from nation-state groups, AI threats

Critical infrastructure faces mounting threats from nation-state groups and AI-driven attacks. In the latest installment of our Cybersecurity Awareness Month blog series, learn how leading cybersecurity agencies, such as CISA, are advising critical infrastructure organizations on ways to protect themselves and the essential services they provide.Key takeawaysCritical infrastructure organizations often struggle with asset visibility gaps that create hidden attack vectors. Many older OT systems a…

Product Walkthrough: Bitdefender AI Visibility and Control

A user opens a browser tab, pastes data into a chat assistant, and nothing is installed. A developer adds a coding assistant as an editor extension, and nothing shows up in the installed programs list. Someone downloads a local model runtime, a program that runs models directly on the machine instead of sending data to an external service, because they were told not to send company data

Low-Cost Android Phones Ship With Preinstalled Malware That Turns Them Into Residential Proxies

Low-cost Android smartphones have been shipped with malicious software baked into the device firmware, allowing bad actors to covertly install apps, conduct ad fraud, and turn devices into residential proxies. The activity, which targets Android devices built on MediaTek platforms across several brands, is being tracked by Bitdefender under the moniker Midnight Mimosa. The preinstalled

Norway fines Microsoft ad firm $9.6 million over Grindr data sharing

Norway's Data Protection Authority (Datatilsynet) has fined Microsoft-owned advertising company Xandr NOK 92 million ($9.6M) for unlawfully processing and sharing sensitive data belonging to Grindr users in the country. [...]

No Identity, No Recovery: Cyber Resilience Starts With IAM

The proliferation of enterprise apps and the centrality of cloud identity providers requires an identity security rethink.

12th October – Threat Intelligence Report

For the latest discoveries in cyber research for the week of 12th October, please download our Threat Intelligence Bulletin. TOP ATTACKS AND BREACHES Denmark’s government has disclosed a breach involving its Central Register of Persons after unauthorized individuals exploited access provided to a private supplier. The incident reportedly exposed personal information, including names, addresses, and […] The post 12th October – Threat Intelligence Report appeared first on Check Point Research.

Inside AvisLoader: A Windows Malware Loader Built to Resist Disruption

A new Windows malware loader called AvisLoader uses encrypted peer-to-peer communications to make command-and-control infrastructure harder to disrupt. Varonis researchers explain how the malware uses ClickFix delivery, shortcut-based persistence, and remote command execution capabilities. [...]

Microsoft: Windows 11 23H2 reaches end of support in 30 days

Microsoft has reminded customers that systems running Windows 11 23H2 Enterprise, Education, and IoT Enterprise editions will stop receiving security updates next month. [...]

SECURITY AFFAIRS AI-CYBERSECURITY NEWSLETTER ROUND 3

Security Affairs AI-CYBERSECURITY newsletter includes a collection of the best articles and research on AI in the international landscape Artificial intelligence is rapidly changing cybersecurity, reshaping both the techniques used by attackers and the tools available to defenders. AI agents can automate tasks, analyze large amounts of data, discover vulnerabilities and accelerate offensive operations. At […]

Bitdefender finds preinstalled Android malware you can’t uninstall, seen in 150 countries

Bitdefender finds Midnight Mimosa, preinstalled Android malware on cheap MediaTek phones that fakes ad clicks, drops apps and builds a proxy botnet. Bitdefender researchers discovered a campaign called Midnight Mimosa involving preinstalled Android malware on low-cost phones from different brands that use MediaTek platforms. The malware is built into the device firmware and may be […]

Hermes Agent - PKCE Session Takeover via Redirect-URI Parser Confusion

Hermes Agent - PKCE Session Takeover via Redirect-URI Parser Confusion Note: Another researcher identified the same vulnerability during the disclosure process with the Nous Researcher team.In Hermes Agent, the public GET /auth/native/authorize flow validates the redirect_uri with Python's urllib.parse.urlparse, then hands the raw, unnormalized value back to the browser after authentication.The two parsers treat backslashes differently. Python's parser and the browser's WHATWG parser therefore …

Attackers Exploit AhsayCBS Flaws to Deploy XMRig Miners Disguised as Microsoft Edge

Threat actors have been observed exploiting two recently disclosed flaws in the AhsayCBS backup utility to seize control of affected devices and deploy web shells and XMRig cryptocurrency miners. Details of the flaws are below - CVE-2026-105133 (CVSS v4 score: 5.5) - An improper authentication vulnerability in the checkSysPwd() function in the "com/ahsay/obs/api/ApiStructsAction.java"

Microsoft: Outdated Windows devices will stop receiving security updates

Microsoft says devices running unsupported versions of Windows will stop receiving security updates after next year's Windows Update certificate rotation. [...]