Quick answers
- Is CVE-2026-124915 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-124915 being exploited in the wild.
- How severe is CVE-2026-124915?
- Informational severity, published 10 November 2026.
- Which products and versions are affected?
- Mozilla Firefox before 160; Mozilla Firefox ESR before 153.7.
- Is there a fix for CVE-2026-124915?
- Yes: fixed in Firefox 160, Firefox ESR 153.7. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-124915 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-124915?
- Check whether you run Mozilla Firefox or Mozilla Firefox ESR 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, Firefox ESR 153.7
Technical details
An incorrect boundary condition vulnerability exists in the Graphics: WebGPU component of Firefox. This vulnerability is triggered when processing WebGPU graphics operations and could allow an attacker to exploit memory safety issues through network-based attack vectors (visiting a malicious website). The vulnerability was patched in Firefox 160 and Firefox ESR 153.7.
Affected products
- Mozilla Firefox before 160
- Mozilla Firefox ESR before 153.7
Timeline
- 2026-11-10: disclosed