Quick answers
- Is CVE-2026-21138 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-21138 being exploited in the wild.
- How severe is CVE-2026-21138?
- Informational severity, published 12 October 2026.
- Which products and versions are affected?
- Samsung Smart Switch prior to 3.7.73.
- Is there a fix for CVE-2026-21138?
- Yes: fixed in 3.7.73. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-21138 attacked?
- It is attacked with physical access, in a software library.
- Am I affected by CVE-2026-21138?
- Check whether you run Samsung Smart Switch at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: 3.7.73
Technical details
Improper authorization in Smart Switch prior to version 3.7.73 fails to adequately verify the authenticity of application data, allowing physical attackers with access to the device to install arbitrary applications. The vulnerability requires physical access to the device to exploit. A fix is available in version 3.7.73 which adds proper authorization checks.
Affected products
- Samsung Smart Switch prior to 3.7.73
Timeline
- 2026-10-12: disclosed