CVE-2021-30661

A use after free issue was addressed with improved memory management. This issue is fixed in Safari 14.1, iOS 12.5.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..
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
appleCNA
---
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CVEADP
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CISA-ADPADP
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
Base Score
CVSS 3.x
EPSS Score
Percentile: 44%
VendorProductVersion
applesafari
𝑥
< 14.1
appleipados
𝑥
< 14.5
appleiphone_os
𝑥
< 12.5.3
appleiphone_os
14.0 ≤
𝑥
< 14.5
applemacos
11.0 ≤
𝑥
< 11.3
appletvos
𝑥
< 14.5
applewatchos
𝑥
< 7.4
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
webkit2gtk
bullseye
2.44.2-1~deb11u1
fixed
stretch
ignored
bullseye (security)
2.44.3-1~deb11u1
fixed
bookworm
2.44.2-1~deb12u1
fixed
bookworm (security)
2.46.0-2~deb12u1
fixed
trixie
2.46.2-1
fixed
sid
2.46.3-1
fixed
wpewebkit
bullseye (security)
2.38.6-1~deb11u1
fixed
bullseye
2.38.6-1~deb11u1
fixed
stretch
ignored
bookworm
2.38.6-1
fixed
trixie
2.46.2-1
fixed
sid
2.46.3-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
qtwebkit-opensource-src
noble
ignored
mantic
ignored
lunar
ignored
kinetic
ignored
jammy
ignored
impish
ignored
hirsute
ignored
focal
ignored
bionic
ignored
xenial
ignored
trusty
dne
qtwebkit-source
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
dne
impish
dne
hirsute
dne
focal
dne
bionic
ignored
xenial
ignored
trusty
dne
webkit2gtk
noble
Fixed 2.30.3-1
released
mantic
Fixed 2.30.3-1
released
lunar
Fixed 2.30.3-1
released
kinetic
Fixed 2.30.3-1
released
jammy
Fixed 2.30.3-1
released
impish
Fixed 2.30.3-1
released
hirsute
Fixed 2.30.3-1
released
focal
Fixed 2.30.3-0ubuntu0.20.04.1
released
bionic
Fixed 2.30.3-0ubuntu0.18.04.1
released
xenial
ignored
trusty
dne
webkitgtk
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
dne
impish
dne
hirsute
dne
focal
dne
bionic
ignored
xenial
ignored
trusty
dne
wpewebkit
noble
dne
mantic
dne
lunar
dne
kinetic
dne
jammy
ignored
impish
ignored
hirsute
ignored
focal
ignored
bionic
dne
xenial
dne
trusty
dne