Vulnerability exploitation is the technical mechanism behind most cyberattacks, turning software flaws into unauthorized access. defend.network tracks vulnerabilities with confirmed exploitation in the wild, proof-of-concept code releases, and CISA Known Exploited Vulnerabilities catalog additions, focusing on those that affect widely deployed enterprise software.
WordPress wp2shell RCE under active exploitation with public PoC. NadMesh botnet harvests 3,811 AWS keys from exposed AI services. 7-Zip patches critical archive RCE. Microsoft alerts on ACR Stealer surge.
WordPress 6.9/7.0 core RCE patched Friday with forced updates; OpenSSL HollowByte DoS flaw allows 11-byte memory exhaustion; two Fortinet FortiSandbox command-injection vulns in CISA KEV catalog. NadMesh botnet harvesting AWS keys from exposed AI services.
Two Scattered Spider members sentenced to 5.5 years for 2024 Transport for London attack. Microsoft releases record 570-CVE patch set. ClickLock macOS malware terminates apps until password stolen.
Microsoft SharePoint Server missing authentication flaw actively exploited; Windows User Profile Service zero-day PoC released; Zoom critical account takeover vulnerability disclosed. Microsoft patched record 570 flaws in latest Patch Tuesday.
Microsoft patches record 622 flaws including two zero-days in Active Directory and SharePoint under active attack. SonicWall confirms exploitation of SMA1000 zero-days. GitHub supply-chain attack spreads 300 fake repositories with infostealer malware.
Progress Software orders immediate shutdown of ShareFile Storage Zone Controllers; Injective Labs GitHub compromise distributes crypto-stealing malware; six new U-Boot bootloader vulnerabilities discovered in IoT and data-center devices.
Ubiquiti patches critical UniFi flaws enabling privilege escalation and RCE across Connect, Talk, Access, Protect, AI coding assistants face new HalluSquatting attacks that trick them into installing botnet malware.
GitHub Agentic Workflows leak private repo data via public issues; Gitea CVE-2026-20896 authentication bypass actively exploited; RedWing Android malware rented as fraud service on Telegram.
Adobe ColdFusion max-severity RCE actively exploited; Linux KVM escape (CVE-2026-53359) affects Intel/AMD hosts; Gitea Docker auth bypass (CVE-2026-20896, CVSS 9.8) probed within 13 days; Iranian MOIS-linked group deploys new Cavern C2 framework against Israeli IT providers.
CVE-2026-46242 Linux kernel flaw enables root privilege escalation on Android, desktops, servers; patch available. Seven unpatched FatFs vulnerabilities in millions of embedded devices. North Korea-linked malicious npm packages target developer credentials.
Google and FBI disrupt 2M-device NetNut proxy network; Anubis ransomware actively exploits Citrix Bleed 2 (CVE-2025-5777); ToddyCat malware abuses Google APIs to hijack Gmail accounts; Microsoft 365 OAuth bypass attacks steal tokens in seconds.
Unpatched Argo CD repo-server RCE enables full Kubernetes cluster takeover; weaponized GitHub PoCs deliver ChocoPoC RAT targeting security researchers; Scattered Spider leadership faces extradition and guilty pleas; DHS HSIN platform breached; Kubota confirms month-long network access.
Microsoft research exposes AI agent manipulation via poisoned tool descriptions; Langflow RCE (CVE-2026-33017) actively exploited for Monero mining; six critical shell-injection bypasses discovered in open-source AI coding agents.
Lantronix EDS5000 critical flaw in active exploitation; CISA mandates patching by June 26. Amadey/StealC malware networks dismantled, 27M credentials recovered. Cordyceps CI/CD weakness affects 300+ GitHub repositories.
FortiBleed credential-harvesting campaign collected 110 million credentials from 430
North Korean-linked BlueNoroff compromised 140+ npm packages via Mastra AI. Gravity SMTP WordPress plugin (100k sites) actively exploited for API key theft. AutoJack attack chain targets Windows AI browsing agents.
Apple A12/A13 SecureROM exploited with unpatchable code execution; Gentlemen RaaS expands EDR-evasion toolkit targeting 400 processes; Fortinet FortiBleed now hits 86,644 devices. Klue OAuth breach spreads Salesforce credential theft to cybersecurity vendors.
F5 patched critical NGINX RCE (CVE-2026-42530). Microsoft disclosed active Windows clipboard-stealing malware spreading via USB worms since Feb 2026. INC ransomware claims 830+ victims; Salesforce data stolen through Klue OAuth breach by Icarus group.
Fortinet FortiSandbox faces active in-the-wild exploitation of three CVEs. Android banking trojan Rokarolla targets 217 financial apps with 137 remote commands. Google Vertex AI SDK bucket-squatting flaw enables unauthorized model hijacking.
China-linked UNC6508 maintained undetected access to North American medical, military, and academic research networks for over a year via compromised REDCap servers. Microsoft issued record 200 patches with evidence of active exploitation. Cisco SD-WAN vManage CVE-2026-20262 exploited in the wild.
FBI dismantles Outsider Enterprise phishing network; Arch Linux AUR compromised with 400+ malicious packages deploying credential stealer and rootkit; Splunk Enterprise CVSS-9.8 RCE patched.
Splunk Enterprise CVE-2026-20253 (CVSS 9.8) enables unauthenticated RCE; 400+ Arch Linux AUR packages hijacked with infostealer/rootkit; China-linked Velvet Ant maintained decade-long PAM/OpenSSH backdoor.
CVE-2026-5027 in Langflow actively exploited for unauthenticated RCE; JDY botnet expands to 1,500 devices targeting U.S. military networks. CISA mandates 3-day patching for critical flaws.
Microsoft released record 200 Patch Tuesday fixes including critical flaws; Veeam Backup & Replication RCE (CVE-2026-44963, CVSS 9.4) requires immediate patching; 73 GitHub repos remain compromised as Miasma supply-chain attack investigation continues.
Check Point VPN zero-day (CVSS 9.3) actively exploited since early May; Linux kernel use-after-free now has public exploit; NSO Group continues WhatsApp phishing despite federal court injunction.
Miasma worm compromises 73 Microsoft GitHub repositories; SolarWinds Serv-U DoS flaw confirmed actively exploited; WordPress Everest Forms Pro critical RCE under active attack; Meta AI bot abused to reset Instagram accounts.
Microsoft GitHub hit by Miasma self-replicating worm across 73 repositories; SolarWinds Serv-U actively exploited for DoS; Chrome 149 patches record 429 vulnerabilities.
IronWorm and Miasma worms actively distributed via 50+ poisoned npm packages; WordPress Everest Forms Pro (CVE-2026-3300) exploited for RCE on 4,000 sites; SolarWinds Serv-U flaw weaponized for DoS; 900+ US fuel tank gauges exposed and under attack.
Cisco patches critical Unified CM RCE with public PoC; Claude Code GitHub Action flaw enables repository hijack via GitHub issues; AI agents exploited in defense networks; Hola Browser compromised with cryptominer.
Google Android zero-day (CVE-2025-48595) actively exploited; Gamaredon APT weaponizing WinRAR; WordPress Kirki plugin hijacking admin accounts. CISA adds Oracle WebLogic to KEV catalog.
Red Hat npm packages compromised with Miasma credential-stealing worm; WordPress RCE via CVE-2026-8732; Instagram accounts hijacked via Meta AI bot exploit. Patch WP Maps Pro immediately, rotate developer credentials, enable MFA.
Palo Alto PAN-OS GlobalProtect authentication bypass (CVE-2026-0257) actively exploited; Dutch authorities arrest two hosting operators supporting Russian cyberattacks; Linux kernel CIFSwitch flaw allows privilege escalation.
Palo Alto PAN-OS GlobalProtect flaw (CVE-2026-0257) under active exploitation; CISA contractor exposed AWS GovCloud keys on GitHub; Linux kernel CIFSwitch privilege escalation disclosed.
FortiClient EMS actively exploited to deploy credential stealer; CISA contractor leaked AWS GovCloud keys on GitHub; BTMOB Android RAT spreading via phishing with builder interface.
FortiClient EMS and Gogs RCE vulnerabilities actively exploited in the wild. CISA contractor exposed AWS GovCloud credentials on GitHub. FIFA World Cup fraud campaigns register 4,300+ malicious domains.
Microsoft patched SharePoint RCE (CVE-2026-45659); CISA contractor exposed AWS GovCloud keys on GitHub; MuddyWater targeted nine organizations across four continents using DLL side-loading.
Ghost CMS SQL injection actively exploited across 700+ sites; Microsoft 365 phishing service Kali365 bypasses MFA; multi-ecosystem supply-chain attacks deliver credential stealers.
Supply-chain attacks hit npm and Composer ecosystems; LiteSpeed cPanel CVE-2026-48172 actively exploited; CISA contractor exposed AWS GovCloud credentials on GitHub.
Multiple supply-chain attacks targeting Laravel-Lang and Packagist packages, active exploitation of Drupal CVE-2026-9082, and critical CISA AWS credential leak on GitHub.
GitHub campaign injects malware into 5,561 repos; Drupal SQL injection actively exploited; CISA contractor exposes AWS GovCloud credentials.
Microsoft Defender vulnerabilities actively exploited; 9-year-old Linux kernel flaw enables root execution; Cisco Workload max-severity RCE patched; Showboat malware targets telcos across Middle East and Central Asia.
Microsoft disrupted Fox Tempest malware-signing service; Drupal critical patches May 20; OAuth phishing bypasses MFA on 340+ Microsoft 365 organizations. CVE-2026-31635 Linux PoC public.
Critical zero-days in NGINX, Microsoft Exchange, and Cisco SD-WAN actively exploited in the wild. TanStack supply chain attack compromises OpenAI and AI companies. Immediate patching required.
Critical vulnerabilities in Cisco SD-WAN (CVSS 10.0), Microsoft Exchange, and Funnel Builder WordPress plugin under active exploitation. Supply chain attacks compromise npm packages. Immediate patching required.
Critical Cisco SD-WAN zero-day exploited in the wild; supply chain attacks compromise TanStack and node-ipc; state APTs target government; education platform disrupted by extortion.
Critical BitLocker zero-days with public PoCs, Microsoft Exchange APT exploitation, Canvas ransomware attack on education sector, and Foxconn manufacturing compromise create immediate operational risks across multiple industries.
Critical vulnerabilities in Palo Alto Networks and Ivanti EPMM under active exploitation. PCPJack credential stealer worm targeting cloud infrastructure. Russian state actors harvesting Office tokens via router compromise.
Critical vulnerabilities in vm2, Palo Alto firewalls, and DAEMON Tools combined with Russian military intelligence token harvesting and Iranian APT false-flag campaigns demand immediate patching and investigation.
Critical vulnerabilities in Apache HTTP/2 and MetInfo CMS, supply-chain compromise of DAEMON Tools, and persistent OAuth backdoors require immediate response.
Critical vulnerabilities in cPanel and MOVEit, widespread RMM-based phishing compromising 80+ organizations, and supply-chain malware in PyTorch Lightning demand immediate patching and credential rotation.
Critical Linux root access vulnerability added to CISA KEV with active exploitation confirmed. Multiple critical threats including cPanel mass-exploitation, source code breaches, and state-sponsored APT campaigns.
Critical cPanel RCE exploited for ransomware; Russian military harvesting Office tokens; 30K Facebook accounts compromised; Trellix source code breached; automated Azure OAuth attacks.
Critical RCE vulnerabilities in GitHub and Hugging Face, destructive VECT 2.0 ransomware, Russian token harvesting, and BlueNoroff deepfake attacks demand immediate defensive action.
Critical RCE vulnerabilities in AI infrastructure (SGLang, Anthropic MCP) combined with state-sponsored APT campaigns targeting authentication systems and OT/healthcare infrastructure demand immediate patching and access controls.
Critical zero-day exploits in Microsoft Defender and Apache ActiveMQ, Russian state-sponsored token harvesting, and sophisticated ransomware evasion techniques pose immediate threats requiring emergency patching and threat hunting.
Apache ActiveMQ actively exploited; Microsoft Defender zero-day disclosed; Russian state actors harvesting Office 365 tokens; ZionSiphon targets water infrastructure.
Critical nginx-ui authentication bypass actively exploited; Microsoft releases 169 patches including SharePoint zero-day; n8n webhooks weaponized for phishing; WordPress plugins and signed software compromised.
Critical Microsoft zero-days under exploitation, Russian state hackers harvesting Office tokens via routers, and 220K users compromised by Mirax RAT. Supply-chain risks escalating across PHP and development ecosystems.
Critical vulnerabilities in Next.js, Cisco IMC, and Progress ShareFile actively exploited; $280M cryptocurrency theft attributed to North Korea; credential harvesting impacts 766 hosts
Critical Citrix vulnerability actively exploited, Axios npm supply chain attack spreading RAT, OpenAI vulnerabilities enabling data theft, state-sponsored APT operations escalating against telecom and healthcare sectors
Critical Oracle RCE, Russian state-sponsored phishing, Trivy supply-chain worm, and Iran-backed healthcare wiper attacks demand immediate emergency response and patching across enterprise infrastructure.
Critical vulnerabilities in Oracle Identity Manager and Langflow actively exploited; Trivy supply chain attack escalates with CanisterWorm across 47 npm packages; Russian intelligence phishing campaigns compromise thousands.
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