CVE-2025-4082
Medium
Description
Modification of specific WebGL shader attributes could trigger an out-of-bounds read, which, when chained with other vulnerabilities, could be used to escalate privileges. *This bug only affects Thunderbird for macOS. Other versions of Thunderbird are unaffected.*. This vulnerability was fixed in Firefox 138, Firefox ESR 128.10, Firefox ESR 115.23, Thunderbird 138, and Thunderbird 128.10.
SeverityMedium
CVSS5.9
Exploit probability—
Product
Mozilla Firefox
PublishedApr 29, 2025
First seenApr 29, 2025
Weakness typeCWE-125Out-of-bounds read
How to fix
Update
- mozilla firefox115.23, 138.0, 128.10 or later
- mozilla thunderbird128.10.0, 138.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla firefox | v < 115.23, v < 138.0, 128.0 ≤ v < 128.10 | 115.23, 138.0, 128.10 |
| mozilla thunderbird | v < 128.10.0, v < 138.0 | 128.10.0, 138.0 |
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