Denial of Service

Denial of Service (DoS) vulnerabilities allow attackers to make a system or service unavailable to legitimate users by overwhelming resources or exploiting flaws that cause crashes.

Total CVEs

4

Typical Severity

MEDIUM

Category

General

Understanding Denial of Service

Detailed information about this vulnerability type.

How to Identify

  • Review security advisories
  • Perform regular security testing

Prevention Best Practices

  • Follow security best practices
  • Keep systems updated

Denial of Service CVEs (4)

DescriptionVendor / ProductExploit Status
CVE-2025-666766.2

This vulnerability allows an attacker to crash the IObit Unlocker software by sending a specially crafted request, which can disrupt its normal operation. To exploit this, the attacker needs to have the ability to send requests to the software, potentially affecting users who rely on it for file management.

Unknown
Exploit Available
7 days agoFeb 13, 2026
CVE-2026-20265.4

This vulnerability allows an attacker to gain unauthorized access to the Nessus Agent directory on Windows systems, which could lead to Denial of Service (DoS) attacks that disrupt service. It occurs due to weak file permissions, meaning if an attacker can reach that directory, they could exploit it to cause problems.

Unknown
Exploit Available
7 days agoFeb 13, 2026
CVE-2025-674330.0

An attacker can send a specially crafted DATA packet to the Open TFTP Server, causing it to crash and become unavailable, resulting in a Denial of Service. This vulnerability occurs when the server processes requests and does not handle certain data correctly, but it requires the attacker to have network access to the server.

Unknown
Theoretical
8 days agoFeb 12, 2026
CVE-2025-674327.5

This vulnerability allows attackers to crash the system by sending specially crafted input to the ZBarcode_Encode function in the MBS DynaPDF Plugin. To exploit this, the attacker needs access to the application using the plugin, which means they could potentially disrupt services for users.

Unknown
Theoretical
8 days agoFeb 12, 2026