Backup-data disclosure via predictable secretKey generation
Published Nov 5, 2025 · Updated Nov 5, 2025
Insufficiently random secretKey generation in Samsung Smart Switch before 3.7.68.6 allows adjacent attackers to access application backup data. The backup-protection path generates secretKey values with insufficient randomness instead of using cryptographically secure key generation. Adjacent-network access is required, while authentication and user interaction are not; the published description does not clarify whether data can be altered.
Summary
What happened
Insufficiently random secretKey generation in Samsung Smart Switch before 3.7.68.6 allows adjacent attackers to access application backup data. The backup-protection path generates secretKey values with insufficient randomness instead of using cryptographically secure key generation. Adjacent-network access is required, while authentication and user interaction are not; the published description does not clarify whether data can be altered.
The record
- CVE
- CVE-2025-21078
- Published
- Nov 5, 2025
- Updated
- Nov 5, 2025
- Vendor
- Samsung Electronics Co., Ltd.
- Product
- Samsung Smart Switch
- Classifications
- Unavailable
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 5, 2025CVE publishedPublication date reported by the CVE source.
- Nov 5, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
No sourced classifications are available.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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