CVE-2025-11719

Starting in Thunderbird 143, the use of the native messaging API by web extensions on Windows could lead to crashes caused by use-after-free memory corruption. This vulnerability affects Firefox < 144 and Thunderbird < 144.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
mozillaCNA
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CISA-ADPADP
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 17%
VendorProductVersion
mozillafirefox
143.0 ≤
𝑥
< 144.0
mozillathunderbird
143.0 ≤
𝑥
< 144.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
firefox
sid
145.0.1-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
firefox
questing
not-affected
plucky
not-affected
noble
not-affected
jammy
not-affected
thunderbird
questing
not-affected
plucky
not-affected
noble
not-affected
jammy
not-affected
mozjs38
questing
dne
plucky
dne
noble
dne
jammy
dne
bionic
needs-triage
mozjs52
questing
dne
plucky
dne
noble
dne
jammy
dne
focal
ignored
bionic
ignored
mozjs68
questing
dne
plucky
dne
noble
dne
jammy
dne
focal
ignored
mozjs78
questing
dne
plucky
dne
noble
dne
jammy
ignored
mozjs91
questing
dne
plucky
dne
noble
dne
jammy
ignored
mozjs102
questing
dne
plucky
dne
noble
ignored
jammy
ignored
mozjs115
questing
dne
plucky
ignored
noble
ignored
jammy
dne