CVE-2023-32435

HIGH

8.8

CVSS Score

Published: June 23, 2023 at 12:00 AM UTC

Updated: June 17, 2026 at 05:58 AM UTC

4 products affected across 1 vendormacOSiPhone OSiPadOS

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Severity

HIGH8.8

Exploitation

CISA KEV

Exploit prediction

EPSS 23%

SSVC

Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score23.0%

EPSS (Exploit Prediction Scoring System) estimates a 23.0% chance this CVE is exploited in the wild within the next 30 days — higher than 98% 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 a memory corruption 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.

Ransomware Use

Unknown

Added to KEV

Jun 23, 2023

Remediation Due

Jul 14, 2023

1203 days overdue

Notes

https://support.apple.com/en-us/HT213670, https://support.apple.com/en-us/HT213671, https://support.apple.com/en-us/HT213676, https://support.apple.com/en-us/HT213811

https://nvd.nist.gov/vuln/detail/CVE-2023-32435

Description

A memory corruption issue was addressed with improved state management. This issue is fixed in macOS Ventura 13.3, Safari 16.4, iOS 16.4 and iPadOS 16.4, iOS 15.7.7 and iPadOS 15.7.7. Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited against versions of iOS released before iOS 15.7.

Affected

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

iPadOS · Apple

95%

v < 15.7v < 15.7.7v < 16.416.0 ≤ v < 16.4

Affected range stops below 15.7, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.7.7, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.4, so it looks safe — our inference, not a vendor statement

iPhone OS · Apple

95%

v < 15.7.716.0 ≤ v < 16.4

Affected range stops below 15.7.7, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.4, so it looks safe — our inference, not a vendor statement

macOS · Apple

95%

v < 13.313.0 ≤ v < 13.3

Affected range stops below 13.3, so it looks safe — our inference, not a vendor statement

Safari · Apple

95%

v < 16.4

Affected range stops below 16.4, 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 (5)

Vendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT213670

Vendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT213671

Vendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT213676

Vendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT213811

US Government Resource

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

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-32435

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

CWE-787

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