CVE-2023-32434: Apple Multiple Products Integer Overflow Vulnerability
Advisory generated from the CVE record, CISA, Exploit Observer and VEDAS: what it is, whether it is exploited, who is affected, and how to fix and detect it.
Generated by VEDAS. Scores as of 2026-11-11 15:49 UTC. Rebuilt every few hours from cve-scores, CISA KEV and vedas-signatures. How this works and its limits.
What it is
An integer overflow was addressed with improved input validation. This issue is fixed in watchOS 9.5.2, macOS Big Sur 11.7.8, iOS 15.7.7 and iPadOS 15.7.7, macOS Monterey 12.6.7, watchOS 8.8.1, iOS 16.5.1 and iPadOS 16.5.1, macOS Ventura 13.4.1. An app may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited against versions of iOS released before iOS 15.7.
Description quoted from the CVE record (assigned by apple, published 2023-06-23).
Weakness: CWE-190 Integer Overflow or Wraparound
How it can be exploited
Exploitable with local access with low attack complexity needing no privileges and a user must take an action. Impact: confidentiality high, integrity high, availability high. CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CISA assessment (SSVC): CISA assesses exploitation as active. Automatable: no. Technical impact: total.
- On CISA KEV since
- 2023-06-23
- US federal deadline
- 2023-07-14
- Ransomware use
- Not known
Public exploit evidence (Exploit Observer)
Exploit Observer found 1 code repository naming this CVE.
Code repositories that name a CVE are often scanners, copies or fakes, and some are malware. Read the code before running anything.
See all 7 references on Exploit Observer
Live scores
- EPSS
- 0.582
very likely to be attacked soon - VEDAS
- 0.975
strong exploit evidence - On CISA KEV
- Yes, since 2023-06-23
- Detection rule
- Out of scope (local)
Thin horizontal line: the “likely exploited” threshold (EPSS 0.10, VEDAS 0.5). Shaded “no data” areas are periods when cve-scores did not publish.
Who is affected
| Product | Affected | Not affected |
|---|---|---|
| Apple macOS | before 12.6 | Not stated |
| Apple iOS and iPadOS | before 15.7 | Not stated |
| Apple iOS and iPadOS | before 16.5 | Not stated |
| Apple watchOS | before 8.8 | Not stated |
| Apple watchOS | before 9.5 | Not stated |
| Apple macOS | before 13.4 | Not stated |
| Apple macOS | before 11.7 | Not stated |
Version ranges exactly as the CVE record states them. “Before X” means X is the first fixed version.
How to fix it
Fixed versions stated in the CVE record: 12.6, 15.7, 16.5, 8.8, 9.5, 13.4, 11.7.
CISA required action: Apply updates per vendor instructions.
Vendor guidance:
- https://support.apple.com/en-us/HT213808,
- https://support.apple.com/en-us/HT213812,
- https://support.apple.com/en-us/HT213809,
- https://support.apple.com/en-us/HT213810,
- https://support.apple.com/en-us/HT213813,
- https://support.apple.com/en-us/HT213811,
How to detect it
This bug needs local access to exploit. VEDAS signatures cover remotely exploitable bugs for now, so there is no network rule or remote check for it. Patch it and watch your endpoint telemetry for unusual local activity.
References
Government sources
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-32434 (government-resource)
Other references
- https://support.apple.com/en-us/HT213810
- https://support.apple.com/en-us/HT213811
- https://support.apple.com/en-us/HT213814
- https://support.apple.com/en-us/HT213808
- https://support.apple.com/en-us/HT213812
- https://support.apple.com/en-us/HT213813
- https://support.apple.com/en-us/HT213809
- https://support.apple.com/kb/HT213990
- http://seclists.org/fulldisclosure/2023/Oct/20
Other databases
Where this comes from
This advisory is generated automatically by VEDAS from: CVE.org record, CISA KEV, cve-scores (EPSS and VEDAS), Exploit Observer. Text in quotes is reproduced from the source; everything else is a fixed template filled with source fields. Nothing here is written by a language model. Check the vendor advisory before acting, and read how VEDAS and Exploit Observer work, and their limits.
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