Quick answers
- Is CVE-2026-21055 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-21055 being exploited in the wild.
- How severe is CVE-2026-21055?
- Informational severity, with a CVSS score of 8.5, published 10 July 2026.
- Which products and versions are affected?
- Samsung Bixby prior to 4.0.70.8.
- Is there a fix for CVE-2026-21055?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-21055 attacked?
- It is attacked with local access, in a network appliance.
- Am I affected by CVE-2026-21055?
- Check whether you run Samsung Bixby 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.
Technical details
A vulnerability exists in Samsung Bixby due to the improper export of Android application components (Activities, Services, or Receivers) without adequate access control. A local malicious application can interact with these exported components to trigger unintended functionality. This allows an attacker to execute arbitrary commands with the privileges of the Bixby application. The issue is resolved in version 4.0.70.8 by implementing proper access controls on the affected components.
Affected products
- Samsung Bixby prior to 4.0.70.8
Timeline
- 2026-07-07: advisory: Samsung published the security bulletin.
- 2026-07-10: disclosed: CVE published to NVD.