Sandbox escape due to use-after-free in the Graphics: WebRender component. This vulnerability was fixed in Firefox 159.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Mozilla Firefox affected
Version Status Constraints
159 unaffected ≤ *

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Advisories

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Fixes

Solution

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Workaround

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References
Link Providers
https://bugzilla.mozilla.org/show_bug.cgi?id=2079499 cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-118/ cve-icon cve-icon
History

Tue, 27 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-416

Tue, 27 Oct 2026 14:15:00 +0000

Type Values Removed Values Added
Description Sandbox escape due to use-after-free in the Graphics: WebRender component. This vulnerability was fixed in Firefox 159.
Title Sandbox escape due to use-after-free in the Graphics: WebRender component
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-10-27T14:06:04.734Z

Reserved: 2026-10-27T14:06:04.563Z

Link: CVE-2026-118023

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-10-27T14:17:00.077

Modified: 2026-10-27T15:00:49.240

Link: CVE-2026-118023

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-27T16:15:04Z

Weaknesses