Quick answers
- Is CVE-2026-124947 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-124947 being exploited in the wild.
- How severe is CVE-2026-124947?
- Informational severity, published 10 November 2026.
- Which products and versions are affected?
- Mozilla Firefox prior to 160.
- Is there a fix for CVE-2026-124947?
- Yes: fixed in Firefox 160. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-124947 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-124947?
- 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
The vulnerability is an incorrect boundary condition flaw in Firefox's Graphics rendering component. Attack requires the user to interact with malicious web content, with the network as the attack vector. Successful exploitation could result in memory corruption, information disclosure, or arbitrary code execution within the browser's security context.
Affected products
- Mozilla Firefox prior to 160
Timeline
- 2026-11-10: disclosed