Privilege escalation due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, and Firefox ESR 153.1.
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 |
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Project Subscriptions
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Advisories
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Fixes
Solution
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Workaround
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References
History
Tue, 18 Aug 2026 12:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Privilege escalation due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, and Firefox ESR 153.1. | |
| Title | Privilege escalation due to use-after-free in the Graphics: Canvas2D component | |
| References |
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Projects
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MITRE
Status: PUBLISHED
Assigner: mozilla
Published:
Updated: 2026-08-18T12:23:30.578Z
Reserved: 2026-08-17T11:57:57.441Z
Link: CVE-2026-74949
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-08-18T13:17:31.683
Modified: 2026-08-18T13:17:31.683
Link: CVE-2026-74949
Redhat
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OpenCVE Enrichment
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Weaknesses
No weakness.