Quick answers
- Is CVE-2026-16373 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-16373 being exploited in the wild.
- How severe is CVE-2026-16373?
- Informational severity, published 21 July 2026.
- Which products and versions are affected?
- Mozilla Firefox for Android Before 153.
- Is there a fix for CVE-2026-16373?
- A patch was published on 2026-07-21. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-16373 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-16373?
- Check whether you run Mozilla Firefox for Android 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 information disclosure vulnerability was identified in the Privacy component of Firefox for Android. While specific root cause details are restricted in the associated Bugzilla report, the flaw allows for the unintended exposure of data handled by the browser's privacy-related features. The vulnerability is reachable via the network, likely through malicious web content, and does not appear to require special privileges. Mozilla has mitigated this issue in Firefox version 153.
Affected products
- Mozilla Firefox for Android Before 153
Timeline
- 2026-07-21: advisory
- 2026-07-21: patched