Debian/firefox-esr: medium 6.5
There was a way to change the value of JavaScript Object properties that were supposed to be non-writeable. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderb
Action: Upgrade firefox-esr to 140.4.0esr-1~deb13u1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 140.4.0esr-1~deb13u1 | - |
Fixed versions
| 140.4.0esr-1~deb13u1 |
Sources
- osv: DEBIAN-CVE-2025-11711#Debian:13/firefox-esr
- https://security-tracker.debian.org/tracker/CVE-2025-11711
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