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ExploitedIn CISA KEVFix available

CVE-2023-32434

Exploitation confirmed. First attested on 2023-06-23 by CISA-ADP, CISA KEV, GCVE · kevintel.

  • Published2023-06-23
  • Fixed in13.4.1 · 12.6.7 · 11.7.8
  • WeaknessCWE-190

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2023-06-23Added to the CISA KEV catalogCISA KEV
  2. 2023-06-23Listed as exploited by GCVEGCVE
  3. 2023-06-23Exploitation first reportedCISA KEV
  4. 2023-06-2318:15CVE publishedNVD
  5. 2024-01-0917:44SSVC exploitation set to activeCISA-ADP

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-32434?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-32434?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Apple macos
BranchAffectedFixed in
13.x≥ 13.0, < 13.4.113.4.1
12.x≥ 12.0.0, < 12.6.712.6.7
11.x≥ 11.0, < 11.7.811.7.8
Apple ipados
BranchAffectedFixed in
16.x≥ 16.0, < 16.5.116.5.1
15.7< 15.7.715.7.7
Apple iphone os
BranchAffectedFixed in
16.x≥ 16.0, < 16.5.116.5.1
15.7< 15.7.715.7.7

1 more product in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA7 products

As apple, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Apple macOS
    Affected
    • < 12.6fixed in 12.6custom
  • Apple iOS and iPadOS
    Affected
    • < 15.7fixed in 15.7custom
  • Apple iOS and iPadOS
    Affected
    • < 16.5fixed in 16.5custom
  • Apple watchOS
    Affected
    • < 8.8fixed in 8.8custom
  • Apple watchOS
    Affected
    • < 9.5fixed in 9.5custom
  • Apple macOS
    Affected
    • < 13.4fixed in 13.4custom

1 more product in the CVE record.

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2023-10-25

Fix

  1. Update Apple macos to 13.4.1 · 12.6.7 · 11.7.8
  2. CISA’s required action: Apply updates per vendor instructions.due 2023-07-14

Advisories and patches

Detection

read 2026-11-02 22:42 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
2 repositories, unverifiedalfiecg24/Trigonrkrakesh524/oob_entry
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

CISA Known Exploited Vulnerability

Date Added
2023-06-23
Patch Due Date
2023-07-14
Ransomware Use
Unknown
Required Action
Apply updates per vendor instructions.

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2023-06-23
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-4pvh-jrgh-mpvj

Frequently asked questions

What is CVE-2023-32434?

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.

Is CVE-2023-32434 actively exploited?

Yes. CVE-2023-32434 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2023-07-14.

What is the CVSS score for CVE-2023-32434?

CVE-2023-32434 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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