Class weakness
Incomplete
CWE-377: Insecure Temporary File
Creating and using insecure temporary files can leave application and system data vulnerable to attack.
Last updated
83
Recorded CVEs
With this primary weakness
0
KEVs
In the CISA KEV catalog
Not rated
Likelihood of exploit
Per MITRE
Class
Abstraction
MITRE classification
Overview
CWE-377 (Insecure Temporary File) is a class-level software weakness catalogued by MITRE in the Common Weakness Enumeration (CWE). It describes a recurring type of mistake that can lead to exploitable security vulnerabilities.
Real-world CVEs
83 recorded CVEs are caused by CWE-377 (Insecure Temporary File). The highest-severity and most recent are shown first. 15 new CWE-377 CVEs have been recorded so far in 2026 (7 in 2025).