Saturday, May 2, 2026
HomeDoS Attacks

DoS Attacks

Critical Unauthenticated DoS Bug Can Take Down Next.js Servers Using Just One HTTP Request

A serious denial-of-service (DoS) flaw in Next.js lets attackers crash self-hosted servers with a single HTTP request, using almost no resources on their end. Security firm Harmony Intelligence found the issue while testing an AI tool, and it affects versions up to 15.5.4.​ Next.js powers...

Cisco Identity Services Engine Bug Enables Forced System Restart By Attackers

Cisco has disclosed a critical vulnerability in its Identity Services Engine (ISE) software that could allow attackers to remotely trigger a system restart, leading to a denial-of-service condition. Identified as CVE-2025-20343, the flaw carries a CVSS base score of 8.6, classifying it as high...

New QUIC-LEAK Vulnerability Exposes Servers to Memory Exhaustion and Denial-of-Service

A critical vulnerability in the widely-used LSQUIC QUIC implementation that allows attackers to crash servers through memory exhaustion before any connection handshake is established. The vulnerability, designated CVE-2025-54939 and dubbed "QUIC-LEAK," bypasses all standard QUIC protection mechanisms and affects the second most popular QUIC...

FUJIFILM Printer Vulnerability Exposes Devices to Denial-of-Service Attacks

A newly disclosed vulnerability in FUJIFILM’s Internet Printing Protocol (IPP) and Line Printer Daemon (LPD) processing logic allows malicious actors to send specially crafted packets that can freeze affected printers, causing a denial-of-service (DoS) condition. FUJIFILM has released firmware updates to address the...

SonicWall SSL VPN Vulnerability Allows Attackers to Launch DoS Attacks on Firewalls

SonicWall has disclosed a significant security vulnerability affecting its Gen7 firewall products that could allow remote attackers to disrupt network services without authentication. The vulnerability, tracked as CVE-2025-40600 and assigned advisory ID SNWLID-2025-0013, was first published on July 29, 2025, with updates released the...

Bloomberg Comdb2 Vulnerabilities Allows Attackers to Initiate DoS Attack via Malicious Packet

Five critical security vulnerabilities in Bloomberg's open-source Comdb2 database that could allow attackers to launch denial-of-service attacks through specially crafted network packets. The vulnerabilities, affecting version 8.1 of the high-availability database system, have been successfully patched by Bloomberg following responsible disclosure practices. Three severe null...