Cyber Security News

167,500 Instances Found Vulnerable to Loop DoS Attack

A sweeping vulnerability has been uncovered, leaving an estimated 167,500 instances across various networks susceptible to a Loop Denial of Service (DoS) attack.

This discovery underscores the ever-present and evolving threats in the digital landscape, prompting an urgent call to action for organizations worldwide.

The Discovery

The vulnerability was first identified by Shadowserver, a renowned entity in the cybersecurity realm dedicated to identifying and mitigating cyber threats.

Through meticulous analysis and monitoring, Shadowserver’s team stumbled upon a pattern of weakness in a staggering number of instances.


Free Webinar : Mitigating Vulnerability & 0-day Threats

Alert Fatigue that helps no one as security teams need to triage 100s of vulnerabilities. :

  • The problem of vulnerability fatigue today
  • Difference between CVSS-specific vulnerability vs risk-based vulnerability
  • Evaluating vulnerabilities based on the business impact/risk
  • Automation to reduce alert fatigue and enhance security posture significantly

AcuRisQ, which helps you to quantify risk accurately:

This flaw, if exploited, could allow attackers to initiate a Loop DoS attack, effectively crippling the targeted systems by overwhelming them with a flood of traffic.

According to a recent tweet from Shadowserver, there are over 167,500 instances that are vulnerable to the “Loop DoS” attack.

The vulnerability was discovered on March 20, 2024, and the affected IPs have been identified.

Understanding Loop DoS Attacks

Loop Denial of Service attacks are a sophisticated form of cyber assault where the attacker exploits a vulnerability within the system to create an endless loop of requests.

Unlike traditional DoS attacks that rely on sheer volume to overwhelm systems, Loop DoS attacks are insidious, using the system’s processes against it to cause a shutdown or significant degradation in performance.

The implications of such a widespread vulnerability are far-reaching. Organizations across various sectors, including finance, healthcare, and government, could be severely disrupted if targeted.

The potential for data loss, financial damage, and erosion of public trust is immense, highlighting the critical need for immediate remedial measures.

Call to Action

In response to this discovery, Shadowserver has issued a call to action for organizations worldwide.

System administrators and IT professionals must assess their networks for the identified vulnerabilities and apply necessary patches or updates.

Additionally, enhancing monitoring capabilities and adopting a proactive stance toward cybersecurity can mitigate the risk of falling victim to such attacks.

The discovery of the Loop DoS vulnerability serves as a stark reminder of cyber threats’ dynamic and perilous nature.

As attackers evolve their tactics, the cybersecurity community must remain vigilant, fostering collaboration and sharing knowledge to stay one step ahead.

The incident underscores the importance of ongoing research and investment in cybersecurity measures to safeguard the digital ecosystem.

Stay updated on Cybersecurity news, Whitepapers, and Infographics. Follow us on LinkedIn & Twitter.


Divya is a Senior Journalist at Cyber Security news covering Cyber Attacks, Threats, Breaches, Vulnerabilities and other happenings in the cyber world.

Recent Posts

Palo Alto Networks PAN-OS Zero-day Under Active Attack

In a recent security alert, Palo Alto Networks has disclosed a critical vulnerability within its…

9 hours ago

DuckDuckGo Launches Privacy Pro : 3-In-1 Service With VPN

DuckDuckGo is a search engine that takes users' privacy seriously. It does not track or…

10 hours ago

Wiz to Acquire Gem Security for $350M to Address Cloud Security

Wiz, a leading cloud security company, has announced its acquisition of Gem Security for $350…

15 hours ago

Critical Bitdefender Vulnerabilities Let Attackers Gain Control Over System

Bitdefender GravityZone Update Server (versions 6.36.1, Endpoint Security for Linux, and Endpoint Security for…

15 hours ago

Ukrainian Hackers Hijacked 87,000 Sensors to Shut down Sewage System

Ukrainian hackers have successfully infiltrated and disabled a vast network of industrial sensors and monitoring…

16 hours ago

Zscaler Acquires Airgap Networks to Enhance Zero Trust SASE

Zscaler has announced the acquisition of Airgap Networks, a company renowned for its agentless segmentation…

18 hours ago