CWE-207
Weakness AllowedObservable Behavioral Discrepancy With Equivalent Products
Abstraction: Variant · Status: Draft
The product operates in an environment in which its existence or specific identity should not be known, but it behaves differently than other products with equivalent functionality, in a way that is observable to an attacker.
For many kinds of products, multiple products may be available that perform the same functionality, such as a web server, network interface, or intrusion detection system.
Often, an organization might intentionally allow the specific product to be identifiable. However, in some environments, the ability to identify a distinct product is unacceptable, and it is expected that every product would behave in exactly the same way. In these more restricted environments, a behavioral difference might pose an unacceptable risk if it makes it easier to identify the product's vendor, model, configuration, version, etc.
Mapping guidance
This CWE entry is at the Variant level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities.
Carefully read both the name and description to ensure that this mapping is an appropriate fit. Do not try to 'force' a mapping to a lower-level Base/Variant simply to comply with this preferred level of abstraction.
Modes of introduction
Content history
updated Potential_Mitigations, Time_of_Introduction
updated Relationships, Taxonomy_Mappings
updated Description, Name
updated Common_Consequences
updated Relationships
updated Potential_Mitigations
updated Relationships
updated Applicable_Platforms
updated Description, Name, Relationships
updated Relationships
updated Mapping_Notes
updated Weakness_Ordinalities
updated Common_Consequences, Description
2 vulnerabilities reference this CWE, most recent first.
CVE-2025-41657 (GCVE-0-2025-41657)
Vulnerability from cvelistv5 – Published: 2025-06-10 10:46 – Updated: 2025-06-10 14:25- CWE-207 - Observable Behavioral Discrepancy With Equivalent Products
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GHSA-W6H2-P5Q3-P762
Vulnerability from github – Published: 2025-06-10 12:30 – Updated: 2025-06-10 12:30Due to an undocumented active bluetooth stack on products delivered within the period 01.01.2024 to 09.05.2025 fingerprinting is possible by an unauthenticated adjacent attacker.
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"id": "GHSA-w6h2-p5q3-p762",
"modified": "2025-06-10T12:30:18Z",
"published": "2025-06-10T12:30:18Z",
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No mitigation information available for this CWE.
No CAPEC attack patterns related to this CWE.