CVE-2026-5731
INFO
Priority: 0.00
BB Relevance:
0/100
Published: 2026-04-07
Modified: 2026-10-24
First seen: 2026-10-29
Status: pending_score
Description
Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. 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 149.0.2, Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird 149.0.2, and Thunderbird 140.9.1.
Affected Software (5)
| Vendor | Product | Version |
|---|---|---|
| mozilla | firefox | 115.34.0 |
| mozilla | firefox | 140.9.0 |
| mozilla | firefox | 149.0.1 |
| mozilla | thunderbird | 140.9.0 |
| mozilla | thunderbird | 149.0.1 |
References & Advisories (33)
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