Most Common Cybersecurity Vulnerabilities

Table of Contents

In the rapidly evolving world of cybersecurity, staying informed about the most common vulnerabilities is crucial for organizations to protect their digital assets. A thorough understanding of technical vulnerabilities found in the Common Vulnerabilities and Exposures (CVE), MITRE ATT&CK, and OWASP standards can help organizations identify and remediate weaknesses in their systems. This article will explore some of the most common technical cybersecurity vulnerabilities and provide insights on how to address them effectively.

  1. Injection Vulnerabilities (OWASP Top Ten)

Injection vulnerabilities, such as SQL, NoSQL, OS, or LDAP injection, occur when untrusted data is sent to an interpreter as part of a command or query. These vulnerabilities can allow attackers to execute arbitrary commands or access unauthorized data.


  • Use parameterized queries or prepared statements to separate data from commands.
  • Employ input validation and output encoding to ensure that user-supplied data is safe to process.
  • Limit the privileges of application accounts interacting with databases to minimize potential damage in case of an attack.
  1. Broken Authentication (OWASP Top Ten)

Broken authentication vulnerabilities occur when an application’s authentication and session management functions are poorly implemented, allowing attackers to impersonate legitimate users or gain unauthorized access to sensitive data.


  • Implement multi-factor authentication (MFA) to add an extra layer of security.
  • Use strong, unique passwords and ensure that passwords are securely stored using proper hashing and salting techniques.
  • Employ secure session management by using secure cookies, short session timeouts, and proper handling of session tokens.
  1. Cross-Site Scripting (XSS) Vulnerabilities (OWASP Top Ten)

Cross-site scripting vulnerabilities occur when an application includes untrusted data in a web page without proper validation or escaping, allowing attackers to execute malicious scripts in the context of a user’s browser.


  • Perform input validation and output encoding to ensure that user-supplied data is safe to process.
  • Utilize Content Security Policy (CSP) headers to prevent the execution of unauthorized scripts.
  • Employ secure coding practices to prevent the introduction of XSS vulnerabilities in the application.
  1. Buffer Overflow Vulnerabilities (CVE)

Buffer overflow vulnerabilities are caused by an application writing data beyond the bounds of a buffer, potentially leading to the execution of malicious code, crashes, or data corruption.


  • Use secure coding practices and languages that prevent buffer overflows, such as bounds checking or automatic memory management.
  • Employ static and dynamic code analysis tools to identify potential buffer overflow vulnerabilities.
  • Apply patches and updates to libraries and software that may contain buffer overflow vulnerabilities.
  1. Privilege Escalation (MITRE ATT&CK)

Privilege escalation vulnerabilities allow an attacker to gain elevated access to resources that are normally protected from an application or user, enabling the attacker to execute unauthorized actions or access sensitive data.


  • Implement the principle of least privilege, ensuring that users and applications have the minimum required access.
  • Regularly review and audit user accounts, permissions, and roles to identify and correct potential privilege escalation vulnerabilities.
  • Keep software and operating systems up-to-date with the latest security patches.


Understanding and mitigating common technical cybersecurity vulnerabilities is essential for organizations to protect their digital assets effectively. By focusing on the vulnerabilities found in the CVE, MITRE ATT&CK, and OWASP standards, organizations can build more secure applications and systems while minimizing their exposure to potential cyberattacks. It is crucial to invest in regular security assessments, employee education, and secure development practices to ensure that vulnerabilities are identified and remediated before they can be exploited by attackers.

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