Privileged function activation via replayed authentication data
Published Mar 16, 2026 · Updated Mar 16, 2026
Authentication bypass in Samsung Smart Switch before 3.7.69.15 allows remote attackers to trigger privileged functions by replaying authentication data. The authentication flow accepts previously captured authentication material again; Samsung has not identified the token, message, or privileged functions involved. No prior privileges are required; Samsung's assessment requires passive user interaction, and the documented consequence stops at privileged-function activation.
Summary
What happened
Authentication bypass in Samsung Smart Switch before 3.7.69.15 allows remote attackers to trigger privileged functions by replaying authentication data. The authentication flow accepts previously captured authentication material again; Samsung has not identified the token, message, or privileged functions involved. No prior privileges are required; Samsung's assessment requires passive user interaction, and the documented consequence stops at privileged-function activation.
The record
- CVE
- CVE-2026-20999
- Published
- Mar 16, 2026
- Updated
- Mar 16, 2026
- Vendor
- Samsung Electronics Co., Ltd.
- Product
- Samsung Smart Switch
- Classifications
- CWE-294, T1550
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 16, 2026CVE publishedPublication date reported by the CVE source.
- Mar 16, 2026Record 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
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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