CVE-2023-32435: Apple macOS · 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.
Affects Apple macOSSource CVE Database V5
Exploited in the wild · KEV due 14 Jul 2023 · 22% EPSS · fixed in 16.4 : patch Apple macOS now.
Data as of 26 Oct 2026, 06:26 UTC
- KEV deadline
- US federal agencies must patch by this date; a sensible deadline for everyone else.
- EPSS
- 22.9% chance of exploitation in 30 days – higher than 97% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 16.4, 15.7, 13.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitation evidence
t = 0 is the CVE’s publication on cve.org
Disclosed: evidence found.
CVE published 23 Jun 2023
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: evidence found.
Listed in CISA KEV the same day as disclosure
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
Timeline
CVE ID reserved
by apple
, 46 days before disclosure
CVE published
on cve.org
, t = 0
Added to CISA KEV (opens in a new tab)
exploitation confirmed
, the same day as disclosure
KEV remediation due
US federal deadline
, 21 days after disclosure
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CISA KEV (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.
What to do
Upgrade Apple macOS to 16.4, 15.7 or 13.3.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Apple macOS | Affected
| Fixed in
|
Description
CVE-2023-32435 is a high-severity memory corruption vulnerability in Apple macOS and iOS that allows arbitrary code execution when processing web content. It affects versions of iOS prior to 15.7 and macOS versions before Ventura 13.3, as well as Safari 16.4 and related OS versions. The flaw arises from improper state management leading to memory corruption (CWE-787). Apple has released patches in macOS Ventura 13.3, iOS 16.4, iPadOS 16.4, and iOS/iPadOS 15.
References
- support.apple.com/en-us/HT213670 (opens in a new tab)
- support.apple.com/en-us/HT213811 (opens in a new tab)
- support.apple.com/en-us/HT213671 (opens in a new tab)
- support.apple.com/en-us/HT213676 (opens in a new tab)
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-32435 (opens in a new tab)