Memory safety bugs present in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 148 and Firefox ESR < 140.8.
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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| Mozilla | Firefox ESR | affected |
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Project Subscriptions
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Advisories
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Fixes
Solution
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Workaround
No workaround given by the vendor.
References
History
Tue, 24 Feb 2026 14:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Memory safety bugs present in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 148 and Firefox ESR < 140.8. | |
| Title | Memory safety bugs fixed in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148 | |
| References |
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Projects
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MITRE
Status: PUBLISHED
Assigner: mozilla
Published:
Updated: 2026-02-24T13:33:22.842Z
Reserved: 2026-02-19T15:06:37.841Z
Link: CVE-2026-2792
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-02-24T14:16:27.680
Modified: 2026-02-24T14:16:27.680
Link: CVE-2026-2792
Redhat
No data.
OpenCVE Enrichment
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Weaknesses
No weakness.