CVE-2025-59438
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-21

Last updated on: 2025-10-23

Assigner: MITRE

Description
Mbed TLS through 3.6.4 has an Observable Timing Discrepancy.
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Meta Information
Published
2025-10-21
Last Modified
2025-10-23
Generated
2026-06-16
AI Q&A
2025-10-21
EPSS Evaluated
2026-06-15
NVD
CVE-2025-59438
EUVD
EUVD-2025-35171
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
arm mbed_tls to 3.6.5 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-208 Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not.
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Executive Summary

This vulnerability is an Observable Timing Discrepancy in Mbed TLS versions up to 3.6.4. It means that the time taken by certain operations can vary in a way that can be observed by an attacker, potentially leaking sensitive information.

Impact Analysis

The timing discrepancy could allow an attacker to gain information about cryptographic operations, potentially leading to the compromise of sensitive data or cryptographic keys.

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