Skip to main content
ExploitedIn CISA KEVFix available

CVE-2023-37450

Exploitation confirmed. First attested on 2023-07-13 by CISA-ADP, CISA KEV, GCVE · kevintel.

  • Published2023-07-27
  • Fixed in16.6

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

The issue was addressed with improved checks. This issue is fixed in iOS 16.6 and iPadOS 16.6, Safari 16.5.2, tvOS 16.6, macOS Ventura 13.5, watchOS 9.6. Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

Timeline

dates in UTC
  1. 2023-07-13Added to the CISA KEV catalogCISA KEV
  2. 2023-07-13Listed as exploited by GCVEGCVE
  3. 2023-07-13Exploitation first reportedCISA KEV
  4. 2023-07-2700:15CVE publishedNVD
  5. 2024-01-0514:56SSVC exploitation set to activeCISA-ADP

Observed activity

isMalicious corpus · updated 2026-11-03 15:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-37450?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-37450?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Apple ipados
BranchAffectedFixed in
16.6< 16.616.6
Apple iphone os
BranchAffectedFixed in
16.6< 16.616.6
Apple macos
BranchAffectedFixed in
13.x≥ 13.0, < 13.513.5

4 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA5 products

As apple, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Apple Safari
    Affected
    • < 16.5fixed in 16.5custom
  • Apple tvOS
    Affected
    • < 16.6fixed in 16.6custom
  • Apple iOS and iPadOS
    Affected
    • < 16.6fixed in 16.6custom
  • Apple macOS
    Affected
    • < 13.5fixed in 13.5custom
  • Apple watchOS
    Affected
    • < 9.6fixed in 9.6custom

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2024-01-05

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • qtwebkit-opensource-srcUbuntu:24.04:LTSall versions · no fixed version listed
  • webkit2Mageia:9all versions · fixed in 2.44.1-1.mga9
  • webkit2gtkUbuntu:22.04:LTSall versions · fixed in 2.40.4-0ubuntu0.22.04.1
  • webkit2gtkDebian:12all versions · fixed in 2.40.3-2~deb12u2
  • webkit2gtkDebian:11all versions · fixed in 2.40.3-2~deb11u2
  • webkit2gtk3SUSE:Manager Server 4.2all versions · fixed in 2.42.1-150200.87.4
  • webkit2gtk3SUSE:Manager Proxy 4.2all versions · fixed in 2.42.1-150200.87.4
  • webkit2gtk3SUSE:Linux Enterprise Workstation Extension 12 SP5all versions · fixed in 2.42.1-2.155.1

43 more package ranges on OSV.dev

Vendor advisories

  • CVE-2023-37450 Red Hat Product Security105 products fixed · 9 known affected

    webkitgtk: arbitrary code execution

    webkitgtk as a component of Red Hat Enterprise Linux 6 · webkitgtk-devel as a component of Red Hat Enterprise Linux 6 · webkitgtk-doc as a component of Red Hat Enterprise Linux 6 · +6 more

  • RHSA-2025:10364 Red Hat Product Security13 products fixed

    Red Hat Security Advisory: webkitgtk4 security update

  • RHSA-2023:4201 Red Hat Product Security46 products fixed

    Red Hat Security Advisory: webkit2gtk3 security update

  • RHSA-2023:4202 Red Hat Product Security46 products fixed

    Red Hat Security Advisory: webkit2gtk3 security update

Full record on NVD

Fix

  1. Update Apple ipados to 16.6
  2. CISA’s required action: Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.due 2023-08-03
  3. Vendor fix Red Hat Product Security RHSA-2025:10364 · 13 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
  4. Workaround from the vendor Red Hat Product Security RHSA-2025:10364 · 13 productsThis vulnerability can be mitigated by setting the environment variable JSC_useWebAssembly=0, which will disable support for WebAssembly. It's not necessary to set this environment variable if you're already using JavaScriptCoreUseJIT=0 to mitigate other CVEs because WebAssembly depends on JIT.
  5. No fix planned, says the vendor Red Hat Product Security CVE-2023-37450 · 4 productsOut of support scope
  6. No fix planned, says the vendor Red Hat Product Security CVE-2023-37450 · 5 productsWill not fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

CISA Known Exploited Vulnerability

Date Added
2023-07-13
Patch Due Date
2023-08-03
Ransomware Use
Unknown
Required Action
Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2023-07-27
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-v874-wp44-mhr4

Frequently asked questions

What is CVE-2023-37450?

The issue was addressed with improved checks. This issue is fixed in iOS 16.6 and iPadOS 16.6, Safari 16.5.2, tvOS 16.6, macOS Ventura 13.5, watchOS 9.6. Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

Is CVE-2023-37450 actively exploited?

Yes. CVE-2023-37450 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2023-08-03.

What is the CVSS score for CVE-2023-37450?

CVE-2023-37450 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Running webkitgtk? Hear about its next vulnerability

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this productCISA KEV additions, July 2023Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database

Sources for this record