CVE-2026-117913
Medium
Description
Use-after-free in the SVG component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
SeverityMedium
CVSS6.3
Exploit probability18. percentile0.3%
ProductFirefox
PublishedOct 27, 2026
First seenOct 27, 2026
Weakness typeCWE-416Use after free
How to fix
Update
- Firefox159 or later
- Firefox ESR153.6 or later
- Thunderbird153.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Firefox | No range specified | 159 |
| Firefox ESR | No range specified | 153.6 |
| Thunderbird | No range specified | 153.6 |
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