Samsung Smart Switch up to 3.7.72 improper authorization

Summaryinfo

A vulnerability marked as problematic has been reported in Samsung Smart Switch up to 3.7.72. Affected is an unknown function. This manipulation causes improper authorization. This vulnerability appears as CVE-2026-21136. The attack requires local access. There is no available exploit.

Detailsinfo

A vulnerability was found in Samsung Smart Switch up to 3.7.72. It has been declared as problematic. Affected by this vulnerability is an unknown code. The manipulation with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect integrity, and availability. The summary by CVE is:

Improper authorization in Smart Switch prior to version 3.7.73 allows physical attackers to invoke application restore process.

The advisory is shared at security.samsungmobile.com. This vulnerability is known as CVE-2026-21136 since 12/11/2025. The exploitation appears to be easy. An attack has to be approached locally. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1548.002 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• Samsung

Name

• Smart Switch

Version

• 3.7.0
• 3.7.1
• 3.7.2
• 3.7.3
• 3.7.4
• 3.7.5
• 3.7.6
• 3.7.7
• 3.7.8
• 3.7.9
• 3.7.10
• 3.7.11
• 3.7.12
• 3.7.13
• 3.7.14
• 3.7.15
• 3.7.16
• 3.7.17
• 3.7.18
• 3.7.19
• 3.7.20
• 3.7.21
• 3.7.22
• 3.7.23
• 3.7.24
• 3.7.25
• 3.7.26
• 3.7.27
• 3.7.28
• 3.7.29
• 3.7.30
• 3.7.31
• 3.7.32
• 3.7.33
• 3.7.34
• 3.7.35
• 3.7.36
• 3.7.37
• 3.7.38
• 3.7.39
• 3.7.40
• 3.7.41
• 3.7.42
• 3.7.43
• 3.7.44
• 3.7.45
• 3.7.46
• 3.7.47
• 3.7.48
• 3.7.49
• 3.7.50
• 3.7.51
• 3.7.52
• 3.7.53
• 3.7.54
• 3.7.55
• 3.7.56
• 3.7.57
• 3.7.58
• 3.7.59
• 3.7.60
• 3.7.61
• 3.7.62
• 3.7.63
• 3.7.64
• 3.7.65
• 3.7.66
• 3.7.67
• 3.7.68
• 3.7.69
• 3.7.70
• 3.7.71
• 3.7.72

License

• commercial

Website

• Vendor: https://www.samsung.com/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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