Home/CWE/Insecure Temporary File
Weakness

Insecure Temporary File

CWE-377 · Class · Incomplete

Creating and using insecure temporary files can leave application and system data vulnerable to attack.

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Weakness Relationships

Where this weakness sits in the CWE hierarchy. Walk up to broader classes or down to more specific variants.
Parent of this (broader)
ChildOfCWE-668 · Exposure of Resource to Wrong Sphere
Children (more specific)
ParentOfCWE-378 · Creation of Temporary File With Insecure Permissions
ParentOfCWE-379 · Creation of Temporary File in Directory with Insecure Permissions
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Attack Patterns (CAPEC)

2
How adversaries exploit this weakness, per MITRE CAPEC.
CAPEC-149Explore for Predictable Temporary File Names
CAPEC-155Screen Temporary Files for Sensitive Information
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CVEs With This Weakness

89
A sample of the 89 CVEs tagged with this weakness.
CVECVE-2026-4822
CVECVE-2026-40979
CVECVE-2026-40973
CVECVE-2026-35342
CVECVE-2026-25701
CVECVE-2026-25645
CVECVE-2026-20651
CVECVE-2026-20649
CVECVE-2026-20618
CVECVE-2026-20204
CVECVE-2025-9474
CVECVE-2025-7707
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