CVE-2026-113400
Medium
Description
Uninitialized memory in the Audio/Video: cubeb component. This vulnerability was fixed in Firefox 158.0.1 and Thunderbird 158.0.1.
SeverityMedium
CVSS5.4
Exploit probability17. percentile0.3%
ProductFirefox
PublishedOct 20, 2026
First seenOct 20, 2026
Weakness typeCWE-457CWE-457
How to fix
Update
- Firefox158.0.1 or later
- Thunderbird158.0.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Firefox | No range specified | 158.0.1 |
| Thunderbird | No range specified | 158.0.1 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
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