CVE-2023-32435

Assessment

Why it matters

CISA lists this vulnerability as known to be exploited; exploitation is confirmed; EPSS is 23.0%; technical severity is CVSS 8.8.

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.

Who should care

• Teams operating Ipados, Iphone Os, macOS +2 more
• Vulnerability and exposure management teams
• Security operations teams monitoring exploitation activity

Response plan

What I would do

1. Confirm whether Ipados, Iphone Os, macOS +2 more is present in the environment.
2. Identify affected versions and establish whether vulnerable services are exposed or reachable.
3. Apple Security advisory HT213670
4. Review relevant security telemetry for evidence of attempted or successful exploitation.
5. Document the remediation decision and track it to verified completion.

Technical details

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE

CWE-787

Affected versions

Apple Ipados (End Excluding 15.7.7 | Start Including 16.0, End Excluding 16.4); Apple Iphone Os (End Excluding 15.7.7 | Start Including 16.0, End Excluding 16.4); Apple macOS (Start Including 13.0, End Excluding 13.3); Apple Multiple Products; Apple Safari (End Excluding 16.4)

Fixed versions

Apple Ipados (Fixed from 15.7.7, 16.4); Apple Iphone Os (Fixed from 15.7.7, 16.4); Apple macOS (Fixed from 13.3); Apple Safari (Fixed from 16.4)

Published

23 June 2023

Attack vector

Network

Privileges required

None

User interaction

Required

Signal timeline

1. 23 Jun 2023CVE published
2. 22 Jun 2023Added to CISA KEV
3. 20 Aug 2026Latest EPSS score: 23.0%
4. 19 Aug 2026 · 12:58 UTCSignal calculated at 73

External references

• CISA Government advisory CVE-2023-32435 ↗