Curated Cyber Threat Intelligence

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Daily intelligence on vulnerabilities, threat actors and geopolitical context — distilled from primary sources.

scheduleUpdated 2026-10-28 · 04:17 UTC
articleTotal: 1890 reports

Filtered Reports

30 / 222 results
Active filter:tag: #microsoft✕ clear
DragonForce Deploys Backdoor.Turn RAT via Microsoft Teams Infrastructurehighperson_alertThreat Actor
person_alertThreat Actor

DragonForce Deploys Backdoor.Turn RAT via Microsoft Teams Infrastructure

DragonForce is a threat actor associated with ransomware operations. The group has demonstrated advanced capabilities in developing custom tooling and leveraging legitimate cloud infrastructure for command-and-control communications.

Microsoft18 Jun · 11:30 UTC
Cryptocurrency clipper malware with worm propagation targets Windowshighbug_reportVulnerability
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Cryptocurrency clipper malware with worm propagation targets Windows

Windows systems globally. No specific product vulnerability; threat relies on social engineering, malicious downloads, or lateral movement. All cryptocurrency wallet users on Windows are potential targets.

Microsoft17 Jun · 21:11 UTC
Microsoft Defender zero-day CVE-2026-50656 enables privilege escalationhighbug_reportVulnerability
bug_reportVulnerability

Microsoft Defender zero-day CVE-2026-50656 enables privilege escalation

Microsoft Defender Malware Protection Engine across all Windows versions. Specific affected engine versions not disclosed. Impacts enterprise and consumer deployments relying on Microsoft Defender for endpoint protection.

CVE-2026-5065617 Jun · 15:36 UTC
Windows June updates break Office launch from third-party appshighbug_reportVulnerability
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Windows June updates break Office launch from third-party apps

Windows systems with June 2024 updates installed. Affects third-party applications attempting to launch Microsoft Office applications or open Office documents. Specific Windows versions not yet disclosed by Microsoft.

Microsoft17 Jun · 09:54 UTC
Microsoft Defender zero-day "RoguePlanet" awaits patch after disclosurehighbug_reportVulnerability
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Microsoft Defender zero-day "RoguePlanet" awaits patch after disclosure

Microsoft Defender (all versions currently deployed). Specific affected versions not disclosed. Impacts organizations relying on Defender for endpoint protection.

Microsoft17 Jun · 06:32 UTC
GhostTree Abuses NTFS Junctions to Evade Microsoft Defender Scanshighperson_alertThreat Actor
person_alertThreat Actor

GhostTree Abuses NTFS Junctions to Evade Microsoft Defender Scans

GhostTree is a threat actor that has developed an evasion technique exploiting recursive NTFS junctions to bypass antivirus scanning. The actor targets the information technology sector and leverages inherent Windows file system features to create in…

Microsoft16 Jun · 12:17 UTC
DragonForce Ransomware Gang Deploys Backdoor.Turn via Teams Infrastructurehighperson_alertThreat Actor
person_alertThreat Actor

DragonForce Ransomware Gang Deploys Backdoor.Turn via Teams Infrastructure

DragonForce is a ransomware gang that has developed custom tooling to support their extortion operations. The group demonstrates advanced capabilities in developing bespoke malware and leveraging legitimate cloud infrastructure for command-and-contro…

Microsoft16 Jun · 08:18 UTC
ScarCruft Deploys NarwhalRAT via Microsoft Account Phishing Lureshighperson_alertThreat Actor
person_alertThreat Actor

ScarCruft Deploys NarwhalRAT via Microsoft Account Phishing Lures

ScarCruft (also tracked as APT37, InkySquid, Reaper, and Group123) is a North Korean state-sponsored advanced persistent threat group. The actor is attributed to North Korea's intelligence apparatus and conducts espionage operations aligned with Pyon…

Microsoft16 Jun · 06:14 UTC
Microsoft 365 Copilot SearchLeak allows data exfiltration via trusted linkhighbug_reportVulnerability
bug_reportVulnerability

Microsoft 365 Copilot SearchLeak allows data exfiltration via trusted link

Microsoft 365 Copilot Enterprise Search. All organizations using M365 Copilot with Enterprise Search enabled are potentially affected. Specific version details not disclosed.

Microsoft15 Jun · 13:09 UTC
SearchLeak in Microsoft 365 Copilot enables data theft via crafted URLscriticalbug_reportVulnerability
bug_reportVulnerability

SearchLeak in Microsoft 365 Copilot enables data theft via crafted URLs

Microsoft 365 Copilot Enterprise. All organizations using Copilot with access to mailbox, OneDrive, or SharePoint data are potentially affected. Specific vulnerable versions not disclosed.

Microsoft15 Jun · 11:00 UTC
BitLocker bypass via recovery partition XML files (GreatXML)highbug_reportVulnerability
bug_reportVulnerability

BitLocker bypass via recovery partition XML files (GreatXML)

Windows BitLocker encryption on systems with recovery partitions. All Windows versions with BitLocker enabled are potentially affected. Specific version scope not yet published.

Microsoft11 Jun · 15:43 UTC
Microsoft June 2025 Patch Tuesday: 206 vulnerabilities, 33 criticalcriticalbug_reportVulnerability
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Microsoft June 2025 Patch Tuesday: 206 vulnerabilities, 33 critical

Microsoft products across the ecosystem. 206 total vulnerabilities: 33 critical, 173 important severity. Specific affected products and CVE identifiers not yet detailed in available information.

Microsoft10 Jun · 13:47 UTC
Microsoft patches actively exploited XSS zero-day in Exchange Server OWAhighbug_reportVulnerability
bug_reportVulnerability

Microsoft patches actively exploited XSS zero-day in Exchange Server OWA

Microsoft Exchange Server (all versions with Outlook Web Access enabled). Specific patched versions not provided. Affects organizations exposing OWA to users.

Microsoft10 Jun · 11:44 UTC
Microsoft patches 3 zero-days: YellowKey, GreenPlasma, MiniPlasmacriticalbug_reportVulnerability
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Microsoft patches 3 zero-days: YellowKey, GreenPlasma, MiniPlasma

All fully patched Windows systems prior to latest patch release. YellowKey and GreenPlasma enable SYSTEM privilege escalation; MiniPlasma bypasses BitLocker encryption on protected drives.

Microsoft10 Jun · 07:57 UTC
Microsoft patches 206 vulnerabilities including 3 zero-days, 39 criticalcriticalbug_reportVulnerability
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Microsoft patches 206 vulnerabilities including 3 zero-days, 39 critical

Microsoft software portfolio: 206 vulnerabilities patched including 56 remote code execution (RCE) flaws, 63 privilege escalation issues, 39 critical-severity vulnerabilities, and 3 actively exploited zero-day flaws.

Microsoft10 Jun · 07:38 UTC
Windows Server domain controllers under active RCE attackcriticalbug_reportVulnerability
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Windows Server domain controllers under active RCE attack

Windows Server domain controllers (all supported versions). Specific version details not yet published by Microsoft. Unauthenticated remote code execution vulnerability.

Microsoft10 Jun · 06:47 UTC
Microsoft Defender zero-day "RoguePlanet" exploited for SYSTEM accesscriticalbug_reportVulnerability
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Microsoft Defender zero-day "RoguePlanet" exploited for SYSTEM access

Microsoft Defender on all updated Windows systems. No CVE assigned yet. Vulnerability is a race condition enabling local privilege escalation to SYSTEM.

Microsoft10 Jun · 03:22 UTC
Microsoft Defender zero-day 'RoguePlanet' enables SYSTEM privilege escalationcriticalbug_reportVulnerability
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Microsoft Defender zero-day 'RoguePlanet' enables SYSTEM privilege escalation

Microsoft Defender on Windows systems. Specific affected versions not disclosed. Given Defender's deployment, scope includes enterprise endpoints, servers running Defender, and consumer Windows installations with default security configuration.

Microsoft9 Jun · 21:11 UTC
Microsoft June 2026 Patch Tuesday: ~200 patches, 36 critical, 3 with PoCscriticalbug_reportVulnerability
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Microsoft June 2026 Patch Tuesday: ~200 patches, 36 critical, 3 with PoCs

Microsoft products across the portfolio. Approximately 200 vulnerabilities patched, including ~36 critical-severity issues. At least 3 vulnerabilities have public proof-of-concept exploit code available.

Microsoft9 Jun · 20:07 UTC
Microsoft June 2026 Patch Tuesday: 200 flaws, 3 disclosed zero-dayshighbug_reportVulnerability
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Microsoft June 2026 Patch Tuesday: 200 flaws, 3 disclosed zero-days

Microsoft products across the ecosystem. 200 vulnerabilities patched, including 3 publicly disclosed zero-day vulnerabilities. Specific affected products and CVE identifiers not yet detailed in available information.

Microsoft9 Jun · 15:57 UTC
Microsoft GitHub repos compromised, 73 disabled for distributing malwarehighbug_reportVulnerability
bug_reportVulnerability

Microsoft GitHub repos compromised, 73 disabled for distributing malware

73 repositories across Microsoft's official GitHub organizations (Azure, microsoft, Azure-Samples, MicrosoftDocs). Organizations using Microsoft sample code, Azure templates, or CI/CD pipelines referencing these repositories are potentially affected.

Microsoft9 Jun · 13:42 UTC
Miasma worm compromises 73 Microsoft GitHub repos in supply chain attackhighbug_reportVulnerability
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Miasma worm compromises 73 Microsoft GitHub repos in supply chain attack

73 Microsoft GitHub repositories across four organizations: Azure, Azure-Samples, Microsoft, and MicrosoftDocs. GitHub has disabled access to affected repositories.

Microsoft6 Jun · 04:58 UTC
UNC5221 Deploys Brickstorm, Plenet, AgentPSD in M365 Espionage Campaignhighperson_alertThreat Actor
person_alertThreat Actor

UNC5221 Deploys Brickstorm, Plenet, AgentPSD in M365 Espionage Campaign

UNC5221 is a Chinese APT group attributed to conducting cyber espionage operations. The group demonstrates advanced capabilities in targeting cloud environments, specifically Microsoft 365 infrastructure.

Microsoft5 Jun · 16:09 UTC
OP-512 Targets IIS Servers with Custom Web Shell Frameworkhighperson_alertThreat Actor
person_alertThreat Actor

OP-512 Targets IIS Servers with Custom Web Shell Framework

OP-512 is a previously unreported threat cluster assessed by ReliaQuest with moderate to high confidence to be linked to China. The actor demonstrates espionage-focused objectives, leveraging custom web shell frameworks to compromise Microsoft Intern…

Microsoft5 Jun · 10:33 UTC
Windows Netlogon RCE under active exploitation after patch releasecriticalbug_reportVulnerability
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Windows Netlogon RCE under active exploitation after patch release

Microsoft Windows Netlogon service, all versions prior to recent patch. Affects domain controllers and systems with Netlogon service enabled. Specific CVE and affected version details not provided in alert.

Microsoft1 Jun · 10:30 UTC
Microsoft May 2026 Patch Tuesday: 118 vulnerabilities, 16 criticalcriticalbug_reportVulnerability
bug_reportVulnerability

Microsoft May 2026 Patch Tuesday: 118 vulnerabilities, 16 critical

Microsoft products and services across the ecosystem. 118 total vulnerabilities: 16 critical severity, 102 important severity. Specific affected products and CVE identifiers not yet detailed in available information.

Microsoft29 May · 14:06 UTC
Storm-2697 Deploys The Gentlemen Go-Based Ransomware with Worm Capabilitieshighperson_alertThreat Actor
person_alertThreat Actor

Storm-2697 Deploys The Gentlemen Go-Based Ransomware with Worm Capabilities

Storm-2697 is a threat actor tracked by Microsoft Threat Intelligence that operates as a ransomware affiliate group. The actor deploys The Gentlemen ransomware, a sophisticated Go-based encryption tool, suggesting technical proficiency in modern prog…

Microsoft28 May · 13:00 UTC
Microsoft SharePoint RCE vulnerability requires immediate patchingcriticalbug_reportVulnerability
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Microsoft SharePoint RCE vulnerability requires immediate patching

Microsoft SharePoint Server (specific versions not disclosed in advisory). Organizations running on-premises SharePoint deployments are affected. SharePoint Online managed by Microsoft likely already patched.

Microsoft27 May · 14:23 UTC
AI chatbot abuse delivers cryptojacking malware via social engineeringhighbug_reportVulnerability
bug_reportVulnerability

AI chatbot abuse delivers cryptojacking malware via social engineering

Users of AI chatbots (platform-agnostic); Windows systems targeted for cryptojacking payload deployment. Campaign actively observed by Microsoft; no specific product vulnerability, relies on social engineering.

Microsoft27 May · 05:45 UTC
Cryptojacking campaign uses SEO poisoning and ScreenConnect for GPU mininghighbug_reportVulnerability
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Cryptojacking campaign uses SEO poisoning and ScreenConnect for GPU mining

Organizations using ScreenConnect remote access software; high-performance PCs with GPUs; users searching for compromised topics via search engines and AI chatbots. Campaign leverages Microsoft .NET utilities for execution.

Microsoft26 May · 19:35 UTC