Netcrook
#Denial of service
Orthanc Bug Turns Medical Image Decoding Into a DoS Hazard
A high-severity integer overflow in Orthanc’s image-handling path shows how a single crafted file can disrupt a DICOM server without touching patient records.
OpenVPN’s Quiet Weak Spot: Three High-Severity Flaws Put Remote Access Under Pressure
Security updates for OpenVPN close three serious vulnerabilities, including a control-channel denial-of-service issue and two Windows-specific helper-path bugs.
One Fault, One Power Cycle: The Hidden OT Risk in Rockwell’s Logix Controllers
A newly tracked flaw in industrial controller firmware shows how a malformed CIP message can turn routine network traffic into downtime for critical manufacturing systems.
Industrial Controllers Hit by a Fault That Can Turn Input Noise Into Downtime
A Rockwell Automation advisory tied to CVE-2021-42260 shows how a crafted data path can push Logix-family controllers into a fault state that demands hands-on recovery.
When a Plant-Floor Translator Cracks, the Whole Network Feels It
Rockwell Automation’s RSLinx Classic has multiple packet-handling flaws that can crash the service, turning a trusted industrial bridge into an availability risk for critical manufacturing environments.
FreeRDP’s 22-Fix Drop Exposes How Much Remote Access Depends on One Codebase
Version 3.31.0 arrives as a security-and-stability release, but the bigger warning is how quickly RDP risk can spread through embedded clients, libraries, and downstream products.
Inside the CNC Crash Path: A Small Packet, a Big OT Problem
A Mitsubishi Electric controller flaw tied to CVE-2025-2399 shows how a network-reachable parsing bug can turn an industrial port into an availability risk for manufacturing environments.
One UDP Packet, Many Machines: The Quiet Industrial Fault Behind a High-Risk Mitsubishi Electric Advisory
A remotely reachable validation flaw in industrial Ethernet handling shows how availability bugs can ripple through OT systems even without code execution or data theft.
OpenSSL’s Patch Wave Exposes the Fragile Edge of Crypto Libraries
Nine flaws patched in one release show how malformed packets and crafted crypto messages can turn specialized OpenSSL features into denial-of-service traps.
OpenSSL’s Nine-Bug Cleanup Exposes How Fast a Shared Crypto Stack Can Turn Fragile
A security update spanning QUIC, DTLS, CMS, CMP, RPK, and AEAD shows that one library patch can carry availability risk across several protocol layers at once.
Rclone Patch Exposes a Quiet But Serious Cloud Risk: Availability Can Be the First Casualty
A high-severity flaw in the file-sync tool puts service uptime in the firing line, showing how quickly a trusted transfer utility can become an operational weak point.
Norway’s Digital State Meets a Simple Weapon: The DDoS Pressure Test
A disruption to shared government infrastructure in Norway shows how availability attacks can ripple across public services without breaching a single account.
Norway’s Public Services Hit a Wall of Traffic, Not a Break-In
A sustained DDoS attack can knock government services off balance without stealing data, and that makes availability a frontline security issue.
When the Government Front Door Wobbles: Norway’s DDoS Disruption Exposes an Availability Problem
A traffic-flood attack briefly pushed Norwegian public services offline, then shifted the story to a harder question: how quickly can a public-sector platform recover when access, not data, is under pressure?
NetScaler Flaws Put the Edge Under Pressure as Patch Windows Shrink
Two high-severity CVEs tied to NetScaler ADC and NetScaler Gateway have pushed internet-facing appliances back into the spotlight, where availability and access control matter most.
Wireshark’s 28-Fix Cleanup Shows How Packet Tools Become Their Own Attack Surface
Version 4.6.8 is a hardening release built to absorb malformed traffic and capture files before they can crash the analyst workflow.
When the Edge Crashes, the Network Feels It First
A Cisco firewall flaw tied to active exploitation is a reminder that a denial-of-service bug on a perimeter device can become an outage, a lockout, and a response headache all at once.
When the Perimeter Flickers: Cisco VPN Appliances Draw Active Exploitation Pressure
A high-severity flaw in Cisco Secure Firewall ASA and FTD turns remote-access infrastructure into a denial-of-service target, with exposure shaped by which VPN features are enabled.
Cisco Firewall Bug Turns HTTP Handling into a Remote Availability Risk
A high-severity flaw in Cisco ASA and FTD software shows how a weakness in HTTP request processing can become a network-wide stability problem when perimeter devices are exposed.
Cisco Firewall Zero-Day Turns Availability Into the Attack Surface
A remotely exploitable flaw in Cisco Secure Firewall ASA and FTD shows how a single unauthenticated bug can become a denial-of-service lever at the network edge.