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CWE-401:Missing Release of Memory after Effective Lifetime
Weakness ID:401
Version:v4.17
Weakness Name:Missing Release of Memory after Effective Lifetime
Vulnerability Mapping:Allowed
Abstraction:Variant
Structure:Simple
Status:Draft
Likelihood of Exploit:Medium
DetailsContent HistoryObserved CVE ExamplesReports
▼Submissions
Submission DateRelease DateSubmitterOrganizationVersionComment
2006-07-192006-07-19PLOVERN/ADraft 3

N/A

Submission Date: 2006-07-19

Release Date: 2006-07-19

Submitter: PLOVER

Organization: N/A

Version: Draft 3

Comment:

N/A

▼Modifications
Modification DateRelease DateModifierOrganizationVersionImportanceComment
2008-07-01N/AEric DalciCigitalN/AN/A

updated Time_of_Introduction

2008-08-01N/AN/AKDM AnalyticsN/AN/A

added/updated white box definitions

2008-08-15N/AN/AVeracodeN/AN/A

Suggested OWASP Top Ten 2004 mapping

2008-09-08N/ACWE Content TeamMITREN/AN/A

updated Applicable_Platforms, Common_Consequences, Relationships, Other_Notes, References, Relationship_Notes, Taxonomy_Mappings, Terminology_Notes

2008-10-14N/ACWE Content TeamMITREN/AN/A

updated Description

2009-03-10N/ACWE Content TeamMITREN/AN/A

updated Other_Notes

2009-05-27N/ACWE Content TeamMITREN/AN/A

updated Name

2009-07-17N/AKDM AnalyticsN/AN/AN/A

Improved the White_Box_Definition

2009-07-27N/ACWE Content TeamMITREN/AN/A

updated White_Box_Definitions

2009-10-29N/ACWE Content TeamMITREN/AN/A

updated Modes_of_Introduction, Other_Notes

2010-02-16N/ACWE Content TeamMITREN/AN/A

updated Relationships

2010-06-21N/ACWE Content TeamMITREN/AN/A

updated Other_Notes, Potential_Mitigations

2010-12-13N/ACWE Content TeamMITREN/AN/A

updated Demonstrative_Examples, Name

2011-03-29N/ACWE Content TeamMITREN/AN/A

updated Alternate_Terms

2011-06-01N/ACWE Content TeamMITREN/AN/A

updated Common_Consequences, Relationships, Taxonomy_Mappings

2012-05-11N/ACWE Content TeamMITREN/AN/A

updated Relationships, Taxonomy_Mappings

2012-10-30N/ACWE Content TeamMITREN/AN/A

updated Potential_Mitigations

2013-02-21N/ACWE Content TeamMITREN/AN/A

updated Observed_Examples

2014-02-18N/ACWE Content TeamMITREN/AN/A

updated Potential_Mitigations, References

2014-07-30N/ACWE Content TeamMITREN/AN/A

updated Relationships, Taxonomy_Mappings

2017-11-08N/ACWE Content TeamMITREN/AN/A

updated References, Relationships, Taxonomy_Mappings, White_Box_Definitions

2019-01-03N/ACWE Content TeamMITREN/AN/A

updated Common_Consequences, Demonstrative_Examples, Name, References, Relationships, Taxonomy_Mappings, Type, Weakness_Ordinalities

2019-06-20N/ACWE Content TeamMITREN/AN/A

updated Description, Name

2020-02-24N/ACWE Content TeamMITREN/AN/A

updated References, Relationships, Taxonomy_Mappings

2020-08-20N/ACWE Content TeamMITREN/AN/A

updated Relationships

2021-03-15N/ACWE Content TeamMITREN/AN/A

updated Relationships

2022-10-13N/ACWE Content TeamMITREN/AN/A

updated Taxonomy_Mappings

2023-01-31N/ACWE Content TeamMITREN/AN/A

updated Common_Consequences, Description

2023-04-27N/ACWE Content TeamMITREN/AN/A

updated Detection_Factors, References, Relationships, Time_of_Introduction

2023-06-29N/ACWE Content TeamMITREN/AN/A

updated Mapping_Notes

2025-04-032025-04-03CWE Content TeamMITRE4.17N/A

updated Description, Diagram, Modes_of_Introduction

Modification Date: 2008-07-01

Release Date: N/A

Modifier: Eric Dalci

Organization: Cigital

Version: N/A

Importance: N/A

Comment:

updated Time_of_Introduction

Modification Date: 2008-08-01

Release Date: N/A

Modifier: N/A

Organization: KDM Analytics

Version: N/A

Importance: N/A

Comment:

added/updated white box definitions

Modification Date: 2008-08-15

Release Date: N/A

Modifier: N/A

Organization: Veracode

Version: N/A

Importance: N/A

Comment:

Suggested OWASP Top Ten 2004 mapping

Modification Date: 2008-09-08

Release Date: N/A

Modifier: CWE Content Team

Organization: MITRE

Version: N/A

Importance: N/A

Comment:

updated Applicable_Platforms, Common_Consequences, Relationships, Other_Notes, References, Relationship_Notes, Taxonomy_Mappings, Terminology_Notes

Modification Date: 2008-10-14

Release Date: N/A

Modifier: CWE Content Team

Organization: MITRE

Version: N/A

Importance: N/A

Comment:

updated Description

Modification Date: 2009-03-10

Release Date: N/A

Modifier: CWE Content Team

Organization: MITRE

Version: N/A

Importance: N/A

Comment:

updated Other_Notes

Modification Date: 2009-05-27

Release Date: N/A

Modifier: CWE Content Team

Organization: MITRE

Version: N/A

Importance: N/A

Comment:

updated Name

Modification Date: 2009-07-17

Release Date: N/A

Modifier: KDM Analytics

Organization: N/A

Version: N/A

Importance: N/A

Comment:

Improved the White_Box_Definition

Modification Date: 2009-07-27

Release Date: N/A

Modifier: CWE Content Team

Organization: MITRE

Version: N/A

Importance: N/A

Comment:

updated White_Box_Definitions

Modification Date: 2009-10-29

Release Date: N/A

Modifier: CWE Content Team

Organization: MITRE

Version: N/A

Importance: N/A

Comment:

updated Modes_of_Introduction, Other_Notes

Modification Date: 2010-02-16

Release Date: N/A

Modifier: CWE Content Team

Organization: MITRE

Version: N/A

Importance: N/A

Comment:

updated Relationships

Modification Date: 2010-06-21

Release Date: N/A

Modifier: CWE Content Team

Organization: MITRE

Version: N/A

Importance: N/A

Comment:

updated Other_Notes, Potential_Mitigations

Modification Date: 2010-12-13

Release Date: N/A

Modifier: CWE Content Team

Organization: MITRE

Version: N/A

Importance: N/A

Comment:

updated Demonstrative_Examples, Name

Modification Date: 2011-03-29

Release Date: N/A

Modifier: CWE Content Team

Organization: MITRE

Version: N/A

Importance: N/A

Comment:

updated Alternate_Terms

Modification Date: 2011-06-01

Release Date: N/A

Modifier: CWE Content Team

Organization: MITRE

Version: N/A

Importance: N/A

Comment:

updated Common_Consequences, Relationships, Taxonomy_Mappings

Modification Date: 2012-05-11

Release Date: N/A

Modifier: CWE Content Team

Organization: MITRE

Version: N/A

Importance: N/A

Comment:

updated Relationships, Taxonomy_Mappings

Modification Date: 2012-10-30

Release Date: N/A

Modifier: CWE Content Team

Organization: MITRE

Version: N/A

Importance: N/A

Comment:

updated Potential_Mitigations

Modification Date: 2013-02-21

Release Date: N/A

Modifier: CWE Content Team

Organization: MITRE

Version: N/A

Importance: N/A

Comment:

updated Observed_Examples

Modification Date: 2014-02-18

Release Date: N/A

Modifier: CWE Content Team

Organization: MITRE

Version: N/A

Importance: N/A

Comment:

updated Potential_Mitigations, References

Modification Date: 2014-07-30

Release Date: N/A

Modifier: CWE Content Team

Organization: MITRE

Version: N/A

Importance: N/A

Comment:

updated Relationships, Taxonomy_Mappings

Modification Date: 2017-11-08

Release Date: N/A

Modifier: CWE Content Team

Organization: MITRE

Version: N/A

Importance: N/A

Comment:

updated References, Relationships, Taxonomy_Mappings, White_Box_Definitions

Modification Date: 2019-01-03

Release Date: N/A

Modifier: CWE Content Team

Organization: MITRE

Version: N/A

Importance: N/A

Comment:

updated Common_Consequences, Demonstrative_Examples, Name, References, Relationships, Taxonomy_Mappings, Type, Weakness_Ordinalities

Modification Date: 2019-06-20

Release Date: N/A

Modifier: CWE Content Team

Organization: MITRE

Version: N/A

Importance: N/A

Comment:

updated Description, Name

Modification Date: 2020-02-24

Release Date: N/A

Modifier: CWE Content Team

Organization: MITRE

Version: N/A

Importance: N/A

Comment:

updated References, Relationships, Taxonomy_Mappings

Modification Date: 2020-08-20

Release Date: N/A

Modifier: CWE Content Team

Organization: MITRE

Version: N/A

Importance: N/A

Comment:

updated Relationships

Modification Date: 2021-03-15

Release Date: N/A

Modifier: CWE Content Team

Organization: MITRE

Version: N/A

Importance: N/A

Comment:

updated Relationships

Modification Date: 2022-10-13

Release Date: N/A

Modifier: CWE Content Team

Organization: MITRE

Version: N/A

Importance: N/A

Comment:

updated Taxonomy_Mappings

Modification Date: 2023-01-31

Release Date: N/A

Modifier: CWE Content Team

Organization: MITRE

Version: N/A

Importance: N/A

Comment:

updated Common_Consequences, Description

Modification Date: 2023-04-27

Release Date: N/A

Modifier: CWE Content Team

Organization: MITRE

Version: N/A

Importance: N/A

Comment:

updated Detection_Factors, References, Relationships, Time_of_Introduction

Modification Date: 2023-06-29

Release Date: N/A

Modifier: CWE Content Team

Organization: MITRE

Version: N/A

Importance: N/A

Comment:

updated Mapping_Notes

Modification Date: 2025-04-03

Release Date: 2025-04-03

Modifier: CWE Content Team

Organization: MITRE

Version: 4.17

Importance: N/A

Comment:

updated Description, Diagram, Modes_of_Introduction

▼Contributions
Contributor DateRelease DateTypeContributorOrganizationVersionComment
▼Previous Name Entries
Change DatePrevious Entry NameVersion
2008-04-11

Memory Leak

N/A
2009-05-27

Failure to Release Memory Before Removing Last Reference (aka 'Memory Leak')

N/A
2010-12-13

Failure to Release Memory Before Removing Last Reference ('Memory Leak')

N/A
2019-01-03

Improper Release of Memory Before Removing Last Reference ('Memory Leak')

N/A
2019-06-20

Improper Release of Memory Before Removing Last Reference

N/A

Change Date: 2008-04-11

Version: N/A

Previous Entry Name: Memory Leak

Change Date: 2009-05-27

Version: N/A

Previous Entry Name: Failure to Release Memory Before Removing Last Reference (aka 'Memory Leak')

Change Date: 2010-12-13

Version: N/A

Previous Entry Name: Failure to Release Memory Before Removing Last Reference ('Memory Leak')

Change Date: 2019-01-03

Version: N/A

Previous Entry Name: Improper Release of Memory Before Removing Last Reference ('Memory Leak')

Change Date: 2019-06-20

Version: N/A

Previous Entry Name: Improper Release of Memory Before Removing Last Reference