Race condition in the IPC component. This vulnerability was fixed in Firefox 159 and Firefox ESR 153.6.

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
153.6 unaffected ≤ 153.*
159 unaffected ≤ *

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://bugzilla.mozilla.org/show_bug.cgi?id=2071379 cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-118/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-120/ cve-icon cve-icon
History

Tue, 27 Oct 2026 16:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-362
CWE-399

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

Type Values Removed Values Added
Description Race condition in the IPC component. This vulnerability was fixed in Firefox 159 and Firefox ESR 153.6.
Title Race condition in the IPC component
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-10-27T14:37:17.184Z

Reserved: 2026-10-27T14:05:55.394Z

Link: CVE-2026-117999

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-10-27T14:16:57.807

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

Link: CVE-2026-117999

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-27T16:30:07Z

Weaknesses