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CVE-2022-22620: Apple iOS, iPadOS, and macOS Webkit Use-After-Free Vulnerability

85
Patch now
HIGH 8.8EXPLOITEDUPGRADEUPGRADEUPGRADE

CVE-2022-22620 is a high-severity flaw (CVSS 8.8) affecting safari, ipados, iphone os, reported as exploited in the wild. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A use after free issue was addressed with improved memory management. This issue is fixed in macOS Monterey 12.2.1, iOS 15.3.1 and iPadOS 15.3.1, Safari 15.3 (v. 16612.4.9.1.8 and 15612.4.9.1.8). 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..

Why this priority

  • High severity
  • EPSS top 3%: very likely to be exploited
  • Exploited in the wild (CISA KEV)
  • Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score8.8 (High)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionRequired
EPSS exploit chance16.3% (top 3%)
CISA exploited listYes, fix due 2022-02-25
WeaknessCWE-416
Published2022-03-18
Last modified2026-06-17
Publisher (CNA): Apple Inc. · Vendor: apple

Share: LinkedIn · X · Reddit

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

apple safari UPGRADE
Affected: < 15.3
Fixed in: 15.3
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy safari || rpm -q safari || safari --version
2. UPGRADE to 15.3 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade safari
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade safari
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
apple ipados UPGRADE
Affected: < 15.3.1
Fixed in: 15.3.1
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
apple iphone os UPGRADE
Affected: < 15.3.1
Fixed in: 15.3.1
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
apple macos UPGRADE
Affected: >= 12.0.0 and < 12.2.1
Fixed in: 12.2.1
Safe to downgrade to: a release before 12.0.0
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Exact fixes by distribution

Fedora 46 · nemo · FIXED · 6.8.0-1.fc46 · FEDORA-2026-0edead723f · source
sudo dnf upgrade --advisory=FEDORA-2026-0edead723f
Fedora ELN · composer · FIXED · 2.11.1-1.eln159 · FEDORA-2026-cb4f992456 · source
sudo dnf upgrade --advisory=FEDORA-2026-cb4f992456
Ubuntu 20.04 · webkit2gtk · FIXED · 2.34.6-0ubuntu0.20.04.1
sudo apt update && sudo apt install --only-upgrade webkit2gtk dpkg --compare-versions "$(dpkg-query -W -f='${Version}' webkit2gtk)" ge "2.34.6-0ubuntu0.20.04.1" && echo PATCHED || echo STILL-VULNERABLE
Ubuntu 22.04 · webkit2gtk · FIXED · 2.35.90-1ubuntu1
sudo apt update && sudo apt install --only-upgrade webkit2gtk dpkg --compare-versions "$(dpkg-query -W -f='${Version}' webkit2gtk)" ge "2.35.90-1ubuntu1" && echo PATCHED || echo STILL-VULNERABLE
Ubuntu 24.04 · webkit2gtk · FIXED · 2.35.90-1ubuntu1
sudo apt update && sudo apt install --only-upgrade webkit2gtk dpkg --compare-versions "$(dpkg-query -W -f='${Version}' webkit2gtk)" ge "2.35.90-1ubuntu1" && echo PATCHED || echo STILL-VULNERABLE
Debian 12 · webkit2gtk · FIXED · 2.34.6-1
sudo apt update && sudo apt install --only-upgrade webkit2gtk dpkg --compare-versions "$(dpkg-query -W -f='${Version}' webkit2gtk)" ge "2.34.6-1" && echo PATCHED || echo STILL-VULNERABLE
Debian 13 · webkit2gtk · FIXED · 2.34.6-1
sudo apt update && sudo apt install --only-upgrade webkit2gtk dpkg --compare-versions "$(dpkg-query -W -f='${Version}' webkit2gtk)" ge "2.34.6-1" && echo PATCHED || echo STILL-VULNERABLE
Debian 12 · wpewebkit · FIXED · 2.34.6-1
sudo apt update && sudo apt install --only-upgrade wpewebkit dpkg --compare-versions "$(dpkg-query -W -f='${Version}' wpewebkit)" ge "2.34.6-1" && echo PATCHED || echo STILL-VULNERABLE
Debian 13 · wpewebkit · FIXED · 2.34.6-1
sudo apt update && sudo apt install --only-upgrade wpewebkit dpkg --compare-versions "$(dpkg-query -W -f='${Version}' wpewebkit)" ge "2.34.6-1" && echo PATCHED || echo STILL-VULNERABLE
RHEL 7 Extended Lifecycle Support · webkitgtk4 · FIXED · webkitgtk4-2.48.3-2.el7_9
sudo dnf upgrade --advisory=RHSA-2025:10364 rpm -q webkitgtk4
RHEL 8 · webkit2gtk3 · FIXED · webkit2gtk3-2.34.6-1.el8
sudo dnf upgrade --advisory=RHSA-2022:1777 rpm -q webkit2gtk3
RHEL 9 · webkit2gtk3 · NOT AFFECTED
Alpine 3.20 · webkit2gtk · FIXED · webkit2gtk-2.34.6-r0
apk add --upgrade webkit2gtk apk info -v webkit2gtk
Amazon Linux 2 · see advisory · FIXED · ALAS2-2023-2088 · source
sudo yum update --advisory=ALAS2-2023-2088

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Verify at the official source NVD · CVE Program · CISA KEV catalog · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-22620?

safari: upgrade to 15.3; ipados: upgrade to 15.3.1; iphone os: upgrade to 15.3.1. Exact commands for each OS are on this page.

Is CVE-2022-22620 being exploited?

Yes. CVE-2022-22620 is on the CISA Known Exploited Vulnerabilities list, so treat it as patch-now.

What does CVE-2022-22620 affect?

CVE-2022-22620 affects safari, ipados, iphone os. Severity is high (CVSS 8.8). A use after free issue was addressed with improved memory management. This issue is fixed in macOS Monterey 12.2.1, iOS 15.3.1 and iPadOS 15.3.1, Safari 15.3 (v. 16612.4.9.1.8 and 15612.4.9.1.8). Processing maliciously crafted web content m

How urgent is CVE-2022-22620?

Priority 85/100. High severity; EPSS top 3%: very likely to be exploited; Exploited in the wild (CISA KEV); Public exploit reference

Software pages

iOS vulnerabilities · macOS vulnerabilities · Safari vulnerabilities · WebKit vulnerabilities · Apple Safari and WebKit vulnerabilities · iPadOS vulnerabilities

Related CVEs

References

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