Quick answers
- Is CVE-2026-58300 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-58300 being exploited in the wild.
- How severe is CVE-2026-58300?
- Medium severity, with a CVSS score of 6.2, published 3 July 2026.
- Which products and versions are affected?
- Microsoft Edge 1.0.0.0 to 150.0.4078.48.
- Is there a fix for CVE-2026-58300?
- 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-2026-58300 attacked?
- It is attacked with local access, in a network appliance.
- Am I affected by CVE-2026-58300?
- Check whether you run Microsoft Edge 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
An absolute path traversal vulnerability (CWE-36) exists in Microsoft Edge for Android versions prior to 150.0.4078.48. The flaw allows a local, unauthorized attacker to bypass intended file access restrictions by providing absolute paths to sensitive files. Successful exploitation enables the disclosure of information from the application's local storage. The attack requires local access to the device but does not require elevated privileges or user interaction. Microsoft has addressed this issue in the latest browser updates.
Affected products
- Microsoft Edge (Chromium-based) for Android 1.0.0.0 to 150.0.4078.48
Timeline
- 2026-07-03: advisory: Microsoft published the security advisory and NVD entry.