Quick answers
- Is CVE-2026-124945 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-124945 being exploited in the wild.
- How severe is CVE-2026-124945?
- Informational severity, published 10 November 2026.
- Which products and versions are affected?
- Mozilla Firefox before 160.
- Is there a fix for CVE-2026-124945?
- Yes: fixed in Firefox 160. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-124945 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-124945?
- Check whether you run Mozilla Firefox 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: Firefox 160
Technical details
An invalid pointer vulnerability exists in the Layout: Text and Fonts component of Firefox. The flaw is triggered through network-based attack vectors when processing malformed font or text data, and affects the memory safety of the rendering engine. The vulnerability was fixed in Firefox 160.
Affected products
- Mozilla Firefox before 160