CVE-2023-37450
HighExploitedPublic exploitwebkitgtk: arbitrary code execution
Published Jul 12, 2023 · Updated Aug 7, 2026 · Also known as DEBIAN-CVE-2023-37450, DSA-5457-1, UBUNTU-CVE-2023-37450
Key Facts
Patch immediately- CVE-2023-37450 is a high-severity vulnerability (CVSS 8.8 v3.1) affecting Safari (Apple), Webkitgtk\+, Ipados (Apple) and 22 more products.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jul 10, 2023. Public exploit code is available.
- EPSS estimates a 19% probability of exploitation in the next 30 days.
- Fixed versions are available, including Ipados 16.6, Iphone OS 16.6, macOS 13.5.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
8.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
19%
Higher than 97.2% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2023-37450 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Jul 13, 2023 | Aug 3, 2023 | Not reported |
| Industry KEV feed | Jul 10, 2023 | Aug 3, 2023 | Not reported |
| CIRCL KEV | Jul 13, 2023 | Aug 3, 2023 | Not reported |
| ENISA EUVD | Jul 13, 2023 | n/a | Not reported |
Required action: Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.
Affected Products
319 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| SafariApple | >= unspecified | 16.5.2 |
| Webkitgtk\+Webkitgtk | See advisory | 2.42.3 |
| IpadosApple | See advisory | 16.6 |
| Iphone OSApple | See advisory | 16.6 |
| macOSApple | >= unspecified | 13.5 |
Patched Releases
Ipados
16.6
Iphone OS
16.6
macOS
13.5
Safari
16.5.2, 16.5
tvOS
16.6
watchOS
9.6
iOS and iPadOS
16.6
libjavascriptcoregtk-4_0-18
2.40.5-150400.4.48.1, 2.40.5-150400.4.51.1, 2.42.1-150000.3.153.1, 2.42.1-150200.87.4, 2.42.1-2.155.1
libjavascriptcoregtk-4_0-18-32bit
2.40.5-150400.4.48.1, 2.40.5-150400.4.51.1, 2.42.1-2.155.1
libjavascriptcoregtk-4_0-18-64bit
2.40.5-150400.4.48.1, 2.40.5-150400.4.51.1
libjavascriptcoregtk-4_1-0
2.40.5-150400.4.48.1, 2.40.5-150400.4.51.1
libjavascriptcoregtk-4_1-0-32bit
2.40.5-150400.4.48.1, 2.40.5-150400.4.51.1
libjavascriptcoregtk-4_1-0-64bit
2.40.5-150400.4.48.1, 2.40.5-150400.4.51.1
libjavascriptcoregtk-6_0-1
2.40.5-150400.4.48.1, 2.40.5-150400.4.51.1
libwebkit2gtk-4_0-37
2.40.5-150400.4.48.1, 2.40.5-150400.4.51.1, 2.42.1-150000.3.153.1, 2.42.1-150200.87.4, 2.42.1-2.155.1
libwebkit2gtk-4_0-37-32bit
2.40.5-150400.4.48.1, 2.40.5-150400.4.51.1
libwebkit2gtk-4_0-37-64bit
2.40.5-150400.4.48.1, 2.40.5-150400.4.51.1
libwebkit2gtk-4_1-0
2.40.5-150400.4.48.1, 2.40.5-150400.4.51.1
libwebkit2gtk-4_1-0-32bit
2.40.5-150400.4.48.1, 2.40.5-150400.4.51.1
libwebkit2gtk-4_1-0-64bit
2.40.5-150400.4.48.1, 2.40.5-150400.4.51.1
libwebkit2gtk3-lang
2.42.1-150000.3.153.1, 2.42.1-150200.87.4, 2.42.1-2.155.1
libwebkitgtk-6_0-4
2.40.5-150400.4.48.1, 2.40.5-150400.4.51.1
typelib-1_0-JavaScriptCore-4_0
2.40.5-150400.4.48.1, 2.40.5-150400.4.51.1, 2.42.1-150000.3.153.1, 2.42.1-150200.87.4, 2.42.1-2.155.1
typelib-1_0-JavaScriptCore-4_1
2.40.5-150400.4.48.1, 2.40.5-150400.4.51.1
typelib-1_0-JavaScriptCore-6_0
2.40.5-150400.4.48.1, 2.40.5-150400.4.51.1
Timeline
Added to Industry KEV feed
Jul 10, 2023
Publicly disclosed
Jul 12, 2023
Added to CISA KEV
Jul 13, 2023
Added to CIRCL KEV
Jul 13, 2023
Added to ENISA EUVD
Jul 13, 2023
Last updated
Aug 7, 2026
Weakness Type
- CWE-94 Improper Control of Generation of Code ('Code Injection')
References
- advisoryRHSA-2023:4201
- advisoryRHSA-2023:4202
- advisoryRHSA-2025:10364
- advisoryhttps://bugzilla.suse.com/1213379
- advisoryhttps://bugzilla.suse.com/1213581
FAQ
Common Questions.
The issue was addressed with improved checks.
Affected: Safari (Apple) versions >= unspecified; Webkitgtk\+; Ipados (Apple), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jul 10, 2023.
Yes. It was added on Jul 13, 2023 with a federal remediation due date of Aug 3, 2023.
Public exploit code is available.
Fixed versions are available, including Ipados 16.6, Iphone OS 16.6, macOS 13.5.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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