Debian/firefox-esr: high 7.5
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
Action: Upgrade firefox-esr to 140.10.0esr-1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 140.10.0esr-1 | - |
Fixed versions
| 140.10.0esr-1 |
Sources
- osv: DEBIAN-CVE-2026-6746#Debian:14/firefox-esr
- https://security-tracker.debian.org/tracker/CVE-2026-6746
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