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CVE-2023-42843: An inconsistent user interface issue was addressed with improved state management

31
Routine
MEDIUM 4.3UPGRADEUPGRADEUPGRADE

CVE-2023-42843 is a medium-severity flaw (CVSS 4.3) affecting safari, ipad os, iphone os. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An inconsistent user interface issue was addressed with improved state management. This issue is fixed in iOS 16.7.2 and iPadOS 16.7.2, iOS 17.1 and iPadOS 17.1, Safari 17.1, macOS Sonoma 14.1. Visiting a malicious website may lead to address bar spoofing.

Why this priority

  • No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score4.3 (Medium)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionRequired
EPSS exploit chance1.0% (top 38%)
CISA exploited listNo
WeaknessCWE-290
Published2024-02-21
Last modified2026-06-17
Publisher (CNA): Apple Inc. · Vendor: apple · fedoraproject · webkitgtk

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: < 17.1
Fixed in: 17.1
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy safari || rpm -q safari || safari --version
2. UPGRADE to 17.1 (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 ipad os UPGRADE
Affected: < 16.7.2 · >= 17.0 and < 17.1
Fixed in: 16.7.2, 17.1
Safe to downgrade to: a release before 17.0
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.
apple iphone os UPGRADE
Affected: < 16.7.2 · >= 17.0 and < 17.1
Fixed in: 16.7.2, 17.1
Safe to downgrade to: a release before 17.0
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.
apple macos MITIGATE
Affected: 14.0
Fixed in: no fixed release known
Safe to downgrade to: a release before 14.0
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.
fedoraproject fedora MITIGATE
Affected: 40
Fixed in: no fixed release known
Safe to downgrade to: a release before 40
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.
webkitgtk webkitgtk UPGRADE
Affected: < 2.44.0
Fixed in: 2.44.0
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy webkitgtk || rpm -q webkitgtk || webkitgtk --version
2. UPGRADE to 2.44.0 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade webkitgtk
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade webkitgtk
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
Verify at the official source NVD · CVE Program · 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-2023-42843?

safari: upgrade to 17.1; ipad os: upgrade to 16.7.2, 17.1; iphone os: upgrade to 16.7.2, 17.1. Exact commands for each OS are on this page.

Is CVE-2023-42843 being exploited?

CVE-2023-42843 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-42843 affect?

CVE-2023-42843 affects safari, ipad os, iphone os. Severity is medium (CVSS 4.3). An inconsistent user interface issue was addressed with improved state management. This issue is fixed in iOS 16.7.2 and iPadOS 16.7.2, iOS 17.1 and iPadOS 17.1, Safari 17.1, macOS Sonoma 14.1. Visiting a malicious website may lead to addre

How urgent is CVE-2023-42843?

Priority 31/100. No elevated risk signals yet.

Software pages

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

Related CVEs

References

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