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CWE CATEGORY: OWASP Top Ten 2021 Category A06:2021 - Vulnerable and Outdated Components

Category ID: 1352
+ Summary
Weaknesses in this category are related to the A06 category "Vulnerable and Outdated Components" in the OWASP Top Ten 2021.
+ Membership
MemberOfViewView - a subset of CWE entries that provides a way of examining CWE content. The two main view structures are Slices (flat lists) and Graphs (containing relationships between entries).1344Weaknesses in OWASP Top Ten (2021)
HasMemberCategoryCategory - a CWE entry that contains a set of other entries that share a common characteristic.937OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
HasMemberCategoryCategory - a CWE entry that contains a set of other entries that share a common characteristic.1035OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
HasMemberBaseBase - a weakness that is still mostly independent of a resource or technology, but with sufficient details to provide specific methods for detection and prevention. Base level weaknesses typically describe issues in terms of 2 or 3 of the following dimensions: behavior, property, technology, language, and resource.1104Use of Unmaintained Third Party Components
+ Vulnerability Mapping Notes

Usage: Prohibited

(this CWE ID must not be used to map to real-world vulnerabilities)

Reason: Category


This entry is a Category. Using categories for mapping has been discouraged since 2019. Categories are informal organizational groupings of weaknesses that can help CWE users with data aggregation, navigation, and browsing. However, they are not weaknesses in themselves.


See member weaknesses of this category.
+ Notes


As of CWE 4.6, the relationships in this category were pulled directly from the CWE mappings cited in the 2021 OWASP Top Ten. These mappings include categories, which are discouraged for mapping. The CWE Program will work with OWASP to improve these mappings, possibly requiring modifications to CWE itself.
+ References
[REF-1212] "A06:2021 - Vulnerable and Outdated Components". OWASP. 2021-09-24. <>.
[REF-1206] "OWASP Top 10:2021". OWASP. 2021-09-24. <>.
+ Content History
+ Submissions
Submission DateSubmitterOrganization
(CWE 4.6, 2021-10-28)
CWE Content TeamMITRE
+ Modifications
Modification DateModifierOrganization
2022-10-13CWE Content TeamMITRE
updated References
2023-04-27CWE Content TeamMITRE
updated Mapping_Notes
2023-06-29CWE Content TeamMITRE
updated Mapping_Notes
Page Last Updated: October 26, 2023