CVE-2023-37450

HIGH

8.8

CVSS Score

Published: July 26, 2023 at 11:21 PM UTC

Updated: June 17, 2026 at 06:08 AM UTC

7 products affected across 2 vendorsmacOSiPhone OSiPadOS

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Severity

HIGH8.8

Exploitation

CISA KEV

Exploit prediction

EPSS 19%

SSVC

Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score18.9%

EPSS (Exploit Prediction Scoring System) estimates a 18.9% chance this CVE is exploited in the wild within the next 30 days — higher than 97% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

Apple iOS, iPadOS, macOS, and Safari WebKit contain an unspecified vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

Required Action

Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

Ransomware Use

Unknown

Added to KEV

Jul 13, 2023

Remediation Due

Aug 3, 2023

1186 days overdue

Notes

https://support.apple.com/en-us/HT213826, https://support.apple.com/en-us/HT213841, https://support.apple.com/en-us/HT213843, https://support.apple.com/en-us/HT213846, https://support.apple.com/en-us/HT213848

https://nvd.nist.gov/vuln/detail/CVE-2023-37450

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

iPadOS · Apple

95%

v < 16.6

Affected range stops below 16.6, so it looks safe — our inference, not a vendor statement

iPhone OS · Apple

95%

v < 16.6

Affected range stops below 16.6, so it looks safe — our inference, not a vendor statement

macOS · Apple

95%

v < 13.513.0 ≤ v < 13.5

Affected range stops below 13.5, so it looks safe — our inference, not a vendor statement

Safari · Apple

95%

v < 16.5v < 16.5.2

Affected range stops below 16.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.5.2, so it looks safe — our inference, not a vendor statement

tvOS · Apple

95%

v < 16.6

Affected range stops below 16.6, so it looks safe — our inference, not a vendor statement

watchOS · Apple

95%

v < 9.6

Affected range stops below 9.6, so it looks safe — our inference, not a vendor statement

WebKitGTK · Webkitgtk

95%

v < 2.42.3

Affected range stops below 2.42.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (7)

Third Party Advisory

Source: [email protected]

https://security.gentoo.org/glsa/202401-04

Vendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT213826

Vendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT213841

Vendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT213843

Vendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT213846

Vendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT213848

US Government Resource

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-37450

SSVC — Action Prioritization

SSVCActiveNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHCISA-ADP

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: REQUIRED
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusANALYZED

CWE

NVD-CWE-noinfo

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