Threat Feed
Daily intelligence on vulnerabilities, threat actors and geopolitical context — distilled from primary sources.
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highbug_reportVulnerabilityACR Stealer campaign uses ClickFix social engineering to steal M365 data
Microsoft 365 enterprise users and organizations. ACR Stealer targets browser credentials, session tokens, and M365 documents. Active since 2024 with two documented delivery chains using ClickFix social engineering lures.
highperson_alertThreat ActorDEBULL Campaign Exploits Microsoft Device Code Flow for M365 Phishing
DEBULL is a phishing campaign active from late June through early July 2026, targeting Microsoft 365 accounts through abuse of Microsoft's legitimate device-code flow authentication mechanism.
highbug_reportVulnerabilityConsentFix and ClickFix campaigns hijack M365 accounts via OAuth token theft
Microsoft 365 accounts across all organizations using OAuth authentication. Campaigns target users through social engineering to approve malicious OAuth consent prompts, bypassing MFA protections by stealing valid authentication tokens.
criticalbug_reportVulnerabilityOracle PeopleSoft RCE actively exploited, immediate patching required
Oracle PeopleSoft (specific versions not disclosed in alert). Remote code execution vulnerability affecting internet-facing PeopleSoft instances.
criticalbug_reportVulnerabilityOracle PeopleSoft zero-day CVE-2026-35273 exploited by ShinyHunters
Oracle PeopleSoft (all versions prior to June 10 patch). Confirmed exploitation targeting enterprise systems and universities. Vulnerability was unpatched during active exploitation window (May 27 - June 9).
criticalbug_reportVulnerabilityWindows 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.
criticalbug_reportVulnerabilityMicrosoft 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.
highperson_alertThreat ActorF5 BIG-IP Exploitation Leads to Confluence Compromise and Lateral Movement
The threat actor behind this campaign remains unattributed. Motivation appears to be credential theft and network persistence within enterprise environments.
criticalbug_reportVulnerabilityMicrosoft Exchange Server XSS flaw actively exploited for session hijacking
Microsoft Exchange Server (specific versions not disclosed). Cross-Site Scripting vulnerability enabling spoofing and session hijacking. No CVE assigned yet.
criticalbug_reportVulnerabilityCisco Catalyst SD-WAN auth bypass grants admin access to attackers
Cisco Catalyst SD-WAN platform. Specific affected versions not disclosed. Vulnerability allows authentication bypass leading to administrative access on SD-WAN infrastructure components.