Network Security

Cybersecurity
South Korea Fines KT $39 Million Over 11-Month Breach
South Korea's data regulator fined telecom giant KT KRW 53.979 billion after an 11-month breach exposed 16,647 subscribers' data through a rogue femtocell.
CVE Vulnerability Alerts
Cisco Secure FMC Zero-Day Added to CISA KEV Under Active Attack
CISA added the Cisco FMC zero-day CVE-2026-20316 to the KEV after active exploitation began. Cisco is also patching a critical FMC auth bypass rated CVSS ...
Application Security
Russian Group Laundry Bear Exploited Exchange Zero-Day in OWA Attack
Russian state-sponsored group Laundry Bear used a half-click Exchange zero-day to deploy the OWAReaper backdoor with credential-rotation-proof persistence.
CVE Vulnerability Alerts
Check Point SmartConsole Auth Bypass PoC Elevates Active Exploit Risk
Rapid7 released a public PoC for CVE-2026-16232, a CVSS 9.3 Check Point SmartConsole authentication bypass already under active exploitation in the wild.
CVE Vulnerability Alerts
OpenWrt CVE-2026-53921 Lets Attackers Root Routers via DHCPv6 Overflow
CVE-2026-53921, a CVSS 9.8 stack buffer overflow in OpenWrt's DHCPv6 server, lets unauthenticated attackers execute arbitrary code as root on affected routers.
Cybersecurity
Nimbus Manticore Deploys NightLedger Backdoor Across Three Regions
Iran-linked Nimbus Manticore deployed the new NightLedger backdoor and WebSocket tunnelers against targets in the Middle East, Africa, and South Asia.
Cybersecurity
Tengu Botnet Reboots Devices via Hardware Watchdog to Evade Removal
Tengu, a new Mirai-derived Linux IoT botnet, triggers device reboots via hardware watchdog when defenders kill its process, supporting 25 DDoS methods.
Cybersecurity
24,650 Internet-Exposed Server BMCs Leak Password Hashes Before Login
Researchers found 24,650 internet-exposed BMCs that disclose IPMI password hashes before login, enabling offline hash cracking and full server takeover.
Cybersecurity
CyberAv3ngers Suspected in OT Attacks on 30+ Minnesota Water Utilities
More than 30 Minnesota water utilities were disrupted in a coordinated OT attack; Tenable suspects Iran-linked CyberAv3ngers based on targeting patterns.
Cybersecurity
CubePilot Drone Controller Developer Hit by DNS Hijacking
Attackers seized CubePilot's domain DNS settings and obtained TLS certificates for all subdomains, potentially capturing credentials during the attack window.