Cisco has released security updates to patch a ClamAV denial-of-service (DoS) vulnerability, which has proof-of-concept (PoC) exploit code. Tracked as CVE-2025-20128, the vulnerability is caused by a ...

A pair of attacks revealed by researchers this year underscored the fragility of the Domain Name System (DNS) and the security extensions (DNSSEC) that were adopted to help secure the world's internet ...

Free unofficial patches are available for a new Windows zero-day vulnerability that allows attackers to crash the Remote Access Connection Manager (RasMan) service. American cybersecurity company ...

The Service Location Protocol (SLP, RFC 2608) allows an unauthenticated remote attacker to register arbitrary services. This could allow an attacker to use spoofed UDP traffic to conduct a ...

Every 4G network is susceptible to a form of denial-of-service (DoS) attack, researchers say. We are in the early stages of a rollout of 5G, the next-generation wireless technology that will replace ...

What just happened? Introduced in 2015, HTTP/2 brought several enhancements to the HTTP protocol including efficient data transmission, request handling, responsiveness, and header compression for ...

A denial-of-service (DoS) attack on a leading satellite comms provider on the day of Russia’s invasion hit tens of thousands of customers in Ukraine and elsewhere, the firm has revealed. Viasat said ...

Cisco has released security updates for its flagship IOS and IOS XE operating system software for networking gear, as well as patches for its Access Point software. The company's security update for ...

Some Alabama state government websites were subject to a “denial of service” attack beginning on Tuesday afternoon, Gov. Kay Ivey’s office said. “There was no breach, and the state’s computers and ...

Redmond has confirmed the eight-hour Azure outage on July 30 was triggered by a distributed denial-of-service attack, but an “error in the implementation of [their ...

France’s La Poste Groupe experienced a widespread online service outage beginning on December 22, 2025, disrupting access to key postal, banking, and digital identity platforms. The organization ...