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HIGH: REJETTO HFS (CVE-2026-61500) — Active scanning for RCE; session forgery attacks ongoing◆HIGH: MICROSOFT EXCHANGE (CVE-2026-96940) — CVSS 8.8 privilege escalation; authentication bypass◆HIGH: DELL SYSTEM UPDATE (CVE-2026-86360+) — Root privilege escalation in DSU CLI tool◆HIGH: CITRIX NETSCALER CVE-2026-88779 — zero-day DoS actively exploited; emergency patches released; CISA KEV Oct 4◆HIGH: SHINYHUNTERS MEMBER DETAINED — Jordan arrest; cooperating with FBI to identify remaining extortion group members◆HIGH: DTU BREACH — Technical University of Denmark; 200,000 user records exposed via IAM system compromise◆HIGH: TA419 PHISHING CAMPAIGN — China-aligned APT targets U.S. AI policy experts at think tanks, universities, legal firms◆HIGH: MI5 WARNING — 100+ U.K. academics aided Chinese intelligence gathering for Beijing state security service◆HIGH: REJETTO HFS (CVE-2026-61500) — Active scanning for RCE; session forgery attacks ongoing◆HIGH: MICROSOFT EXCHANGE (CVE-2026-96940) — CVSS 8.8 privilege escalation; authentication bypass◆HIGH: DELL SYSTEM UPDATE (CVE-2026-86360+) — Root privilege escalation in DSU CLI tool◆HIGH: CITRIX NETSCALER CVE-2026-88779 — zero-day DoS actively exploited; emergency patches released; CISA KEV Oct 4◆HIGH: SHINYHUNTERS MEMBER DETAINED — Jordan arrest; cooperating with FBI to identify remaining extortion group members◆HIGH: DTU BREACH — Technical University of Denmark; 200,000 user records exposed via IAM system compromise◆HIGH: TA419 PHISHING CAMPAIGN — China-aligned APT targets U.S. AI policy experts at think tanks, universities, legal firms◆HIGH: MI5 WARNING — 100+ U.K. academics aided Chinese intelligence gathering for Beijing state security service◆

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HIGH/ OCTOBER 6, 2026TODAY’S BRIEFING — #200

Rejetto HFS, MS Exchange, Dell System Update under active exploitation

Rejetto HFS vulnerability (CVE-2026-61500) actively scanned; Microsoft Exchange flaw permits privilege escalation; Dell DSU tool flaws enable root access. Denmark population breach affects 8.8M people.

CVE-2026-61500Rejetto HFS — Active scanning; session forgery and RCE exploitation ongoing CVE-2026-96940Microsoft Exchange Server — High-severity privilege escalation; CVSS 8.8; authenticated attack CVE-2026-88779Citrix Netscaler Application Delivery Controller — Memory buffer vulnerability; CISA KEV; DoS impact

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200 briefings published

29 vuln reports

59 tools indexed

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Critical vulnerabilities

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CVE	Product	CVSS	Exploited	Patch
CVE-2026-85706	GitLab Community Edition And Enterprise Edition	10	KEV	—
CVE-2026-5430	WSO2 Multiple Products	10	KEV	advisory
CVE-2026-76460	Cisco Identity Services Engine	10	KEV	advisory
CVE-2026-93952	Arista VeloCloud Orchestrator	10	KEV	advisory
CVE-2026-20079	Cisco Secure Firewall Management Center (FMC) And Security Cloud Control (SCC) Firewall Management	10	KEV	advisory

KEV = listed in CISA catalog · IN WILD = active exploitation reported · PoC = public exploit code

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HighOctober 6, 2026

Rejetto HFS, MS Exchange, Dell System Update under active exploitation

Vuln ExploitZero-DayData BreachHealthcareEducation

HighOctober 5, 2026

Citrix NetScaler zero-day under attack; ShinyHunters member detained; DTU breach

Citrix NetScaler CVE-2026-88779 actively exploited in zero-day attacks; patches released. ShinyHunters member detained in Jordan aiding FBI. Danish university DTU breach exposes 200,000 records. TA419 phishing targets U.S. AI policy experts.

Zero-DayVuln ExploitAPTData BreachTechnologyEducationDefense

HighOctober 4, 2026

Microsoft, Fortra vulnerabilities patched; Warlock escalates SharePoint attacks on critical infrastructure

Microsoft shipped nearly 1,000 patches; Fortra issued critical BoKS updates; Warlock ransomware escalates SharePoint exploits against water utilities, telecom operators, and government bodies in Portuguese/Spanish-speaking regions.

Vuln ExploitRansomwareAPTData BreachGovernmentEducationTelecom

HighOctober 3, 2026

Critical RCEs in GitLab, Dell CSM, SharePoint; Warlock ransomware escalates

GitLab patches critical AI Gateway RCE; Dell CSM flaws grant unauthenticated root access on Kubernetes; Warlock ransomware expands SharePoint exploitation across critical infrastructure in multiple countries.

Vuln ExploitRansomwareAPTTechnologyEnergyTelecom

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Tailscale

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WireGuard

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Zscaler Private Access

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Burp Suite

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Kali Linux

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Rejetto HFS, MS Exchange, Dell System Update under active exploitation

Critical vulnerabilities

Daily briefings

Rejetto HFS, MS Exchange, Dell System Update under active exploitation

Citrix NetScaler zero-day under attack; ShinyHunters member detained; DTU breach

Microsoft, Fortra vulnerabilities patched; Warlock escalates SharePoint attacks on critical infrastructure

Critical RCEs in GitLab, Dell CSM, SharePoint; Warlock ransomware escalates

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