CVE record · CVE-2023-32435

Out-of-bounds write in Apple macOS and others

CVSS 8.8 HighCriticalIn CISA KEVEPSS 0.23 · 97th percentile

Critical, because:

In CISA’s KEV catalogue since 23 Jun 2023: it is known to be exploited.
CVSS score 8.8 (7.0 or more) and EPSS 0.23 (0.1 or more): a high score and a real chance of exploitation in the next 30 days.

Published by the CVE Program (CNA: apple) at 23 Jun 2023, 00:00 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Apple	macOS	affected unspecified to before 13.3 custom
Apple	iOS and iPadOS	affected unspecified to before 15.7 custom
Apple	Safari	affected unspecified to before 16.4 custom
Apple	iOS and iPadOS	affected unspecified to before 16.4 custom

Identifiers: CVE-2023-32435
CNA: apple
Weakness (CWE): CWE-787
Tags: Apple macOS
Apple iOS and iPadOS
Apple Safari
Memory corruption
Published: 23 Jun 2023
Updated: 21 Oct 2025

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
8.8	High	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	ADP (CISA-ADP)

CISA KEV Listed since 23 Jun 2023: known to be exploited.
EPSS 0.23, the 97th percentile, on 8 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 23 Jun 2023. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.