CVE-2023-6873

Memory safety bugs present in Firefox 120. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 121.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
8.8 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
mozillaCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 52%
VendorProductVersion
mozillafirefox
𝑥
< 121.0
debiandebian_linux
10.0
debiandebian_linux
11.0
debiandebian_linux
12.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
firefox
sid
133.0.3-1
fixed
thunderbird
bullseye
1:115.12.0-1~deb11u1
fixed
bullseye (security)
1:128.5.0esr-1~deb11u1
fixed
bookworm
1:115.16.0esr-1~deb12u1
fixed
bookworm (security)
1:128.5.0esr-1~deb12u1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
firefox
noble
not-affected
mantic
not-affected
lunar
ignored
jammy
not-affected
focal
Fixed 121.0+build1-0ubuntu0.20.04.1
released
bionic
ignored
xenial
ignored
trusty
ignored
mozjs102
noble
ignored
mantic
ignored
lunar
ignored
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
mozjs38
noble
dne
mantic
dne
lunar
dne
jammy
dne
focal
dne
bionic
ignored
xenial
dne
trusty
dne
mozjs52
noble
dne
mantic
dne
lunar
dne
jammy
dne
focal
ignored
bionic
ignored
xenial
dne
trusty
dne
mozjs68
noble
dne
mantic
dne
lunar
dne
jammy
dne
focal
ignored
bionic
dne
xenial
dne
trusty
dne
mozjs78
noble
dne
mantic
dne
lunar
ignored
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
mozjs91
noble
dne
mantic
dne
lunar
dne
jammy
ignored
focal
dne
bionic
dne
xenial
dne
trusty
dne
thunderbird
noble
not-affected
mantic
not-affected
lunar
ignored
jammy
not-affected
focal
not-affected
bionic
ignored
xenial
ignored
trusty
ignored