Memory safety bugs present in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1. 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 was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2.
| Vendor | Product | Versions |
|---|---|---|
| mozilla | thunderbird | — |
Downstream vendors/products affected by this vulnerability
| Vendor | Product | Source | Confidence |
|---|---|---|---|
| mozilla | firefox | cert_advisory | 90% |
| mozilla | firefox esr | cert_advisory | 90% |
Updated severity to CRITICAL, marked as actively exploited, and added CVE-2026-8092 as a new tag.
Initial creation
