Improper Access Control Affecting Firefox package, versions [,159)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published27 Oct 2026
- disclosed27 Oct 2026
- creditUnknown
Introduced: 27 Oct 2026
NewCVE-2026-117864 (opens in a new tab)How to fix?
Upgrade Firefox to version 159 or higher.
Overview
Affected versions of this package are vulnerable to Improper Access Control through the Form Manager component. An attacker can execute code outside of the intended sandbox by leveraging crafted input or interactions with the component.