Top 10 Software Vulnerabilities

Software vulnerabilities must be identified and prevented, which requires you to have an understanding of the vulnerabilities definition. Here, we go over vulnerabilities definitions and provide a list of the top 10 software vulnerabilities and tips on how to prevent software vulnerabilities.

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Software Vulnerabilities Definition

Software vulnerabilities are weaknesses or flaws present in your code.

Unfortunately, testing and manual code reviews cannot always find every vulnerability. Left alone, vulnerabilities can impact the performance and security of your software. They could even allow untrustworthy agents to exploit or gain access to your products and data. So, you need to know the top 10 most common vulnerabilities.

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What Causes Software Vulnerabilities?

Software vulnerabilities are often caused by a glitch, flaw, or weakness present in the software.

The most effective way to prevent software vulnerabilities is to use secure coding standards to enforce security standards.

📕 Related Resource: Dive into secure coding practices.

Top 10 Most Common Software Vulnerabilities

According to the OWASP Top 10:2025, here are the most common vulnerabilities:

1. Broken Access Control

User restrictions must be properly enforced. If they are broken, it can create a software vulnerability. Untrustworthy agents can exploit that vulnerability.

2. Security Misconfiguration

Security misconfigurations are often the result of:

• Insecure default configurations.
• Incomplete or impromptu configurations.
• Open Cloud storage.
• Misconfigured HTTP headers.
• Wordy error messages that contain sensitive information.

3. Software Supply Chain Failures

Vulnerabilities can be introduced at any stage of building, distributing, and updating software. They can result from untracked versions, components from untrusted sources, or a lack of up-to-date vulnerability scanning.

If a component is vulnerable, an untrustworthy agent can exploit it. This can cause serious data loss or a server takeover.

4. Cryptographic Failures

Sensitive data — such as addresses, passwords, and account numbers — must be properly protected in transit and at rest. If it isn't, untrustworthy agents can exploit vulnerabilities to gain access.

5. Injection

Injection flaws occur when untrusted data is sent as part of a command or query. The attack can then trick the targeted system into executing unintended commands. An attack can also provide untrustworthy agents access to protected data.

6. Insecure Design

Insecure design refers to risks related to design flaws, which often include the lack of at least one of the following:

• Threat modeling.
• Secure design patterns.
• Secure design principles.
• Reference architecture.

7. Authentication Failures

Authentication and session management functions must be implemented correctly. If they aren't, it creates a software vulnerability that untrustworthy agents can exploit to gain access to personal information.

8. Software or Data Integrity Failures

Software and data integrity failures refer to assumptions made about software updates, critical data, and CI/CD pipelines without verifying trust and validity. For example, an automated build system that pulls from untrusted sources or deserialization flaws can enable untrustworthy agents to perform replay, injection, and privilege escalation attacks.

9. Security Logging and Alerting Failures

Insufficient logging and monitoring processes leave potential attacks undetected and breaches unresolved. This leaves your data vulnerable to exploits and makes remediation efforts difficult to plan and execute.

10. Mishandling of Exceptional Conditions

Applications that fail to prevent, detect, and respond to unpredictable scenarios can lead to unexpected behaviors and security vulnerabilities. It could be missing input validation at the user level, or the lack of exception handling at the function level.

📕 Related Resource: Read about the top 10 cybersecurity vulnerabilities.

How to Prevent Software Vulnerabilities

Here are the three most efficient and effective practices to prevent software vulnerabilities.

1. Establish Software Design Requirements

Establish software design requirements. Define and enforce secure coding principles. This should include using a secure coding standard. This will also inform how to write, test, inspect, analyze, and demonstrate your code effectively.

2. Use a Coding Standard

Coding standards — such as OWASP, CWE, and CERT — enable you to better prevent, detect, and eliminate vulnerabilities. Enforcing a coding standard is easy when you use a SAST tool — like Perforce Klocwork. Klocwork identifies security defects and vulnerabilities while the code is being written.

📕 Related Resource: Review the SAST tutorial for additional resources.

3. Test Your Software

It is essential that you test your software as early and often as possible. This helps to ensure that vulnerabilities are found and eliminated as soon as possible. One of the most effective ways to do this is to use a static code analyzer—like Klocwork—as part of your software testing process.

As part of your development pipeline, static analysis complements your testing efforts. You can run tests during CI/CD integration as well as nightly integration testing.

Static code analyzers automatically inspect your code as it’s being written to identify any errors, weaknesses, or bugs. You can also apply any applicable software vulnerability definitions.

📕 Related Resource: The best practices for how to prevent cybersecurity threats.

How Perforce Klocwork Prevents Software Vulnerabilities

Klocwork for C, C++, C#, Rust, Java, JavaScript, Python, and Kotlin identifies security, quality, and reliability issues. This helps you enforce compliance with coding standards. It also helps safeguard your code against vulnerabilities.

By using Perforce Klocwork, you will also receive the following benefits:

• Detect code vulnerabilities, compliance issues, vulnerability definitions, and rule violations earlier in development. This helps accelerate code reviews and manual testing efforts.
• Enforce industry and coding standards, including CWE, CERT, PA DSS, OWASP, and DISA STIG.
• Report on security compliance over time and across product versions.

To see how Klocwork can safeguard against vulnerabilities, register for a free trial.

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