Sandbox escape due to use-after-free in the XPCOM component. This vulnerability was fixed in Firefox 159.
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 |
|
No data.
No data.
No data.
Project Subscriptions
No data.
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Tue, 27 Oct 2026 14:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Sandbox escape due to use-after-free in the XPCOM component. This vulnerability was fixed in Firefox 159. | |
| Title | Sandbox escape due to use-after-free in the XPCOM component | |
| References |
|
Projects
Sign in to view the affected projects.
MITRE
Status: PUBLISHED
Assigner: mozilla
Published:
Updated: 2026-10-27T14:06:04.037Z
Reserved: 2026-10-27T14:06:03.867Z
Link: CVE-2026-118021
Vulnrichment
No data.
NVD
Status : Deferred
Published: 2026-10-27T14:16:59.887
Modified: 2026-10-27T15:00:49.240
Link: CVE-2026-118021
Redhat
No data.
OpenCVE Enrichment
No data.
Weaknesses
No weakness.