Quick answers
- Is CVE-2026-21135 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-21135 being exploited in the wild.
- How severe is CVE-2026-21135?
- Informational severity, published 12 October 2026.
- Which products and versions are affected?
- Samsung Internet prior to 30.0.5.6.
- Is there a fix for CVE-2026-21135?
- Yes: fixed in 30.0.5.6. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-21135 attacked?
- It is attacked with local access.
- Am I affected by CVE-2026-21135?
- Check whether you run Samsung Internet 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: 30.0.5.6
Technical details
An improper access control vulnerability in Samsung Internet permits local attackers to access sensitive information without proper authorization. The vulnerability requires local access to the device. Samsung patched this issue in version 30.0.5.6.
Affected products
- Samsung Internet prior to 30.0.5.6