Security readout for executives and security teams
Plain-English summary
CVE-2023-36495 is an Apple kernel-level code execution issue caused by an integer overflow. Apple fixed it across iOS, iPadOS, macOS, tvOS, and watchOS releases in July 2023. If exploited, a malicious app could gain kernel privileges, making this important for any organization managing Apple endpoints.
Executive priority
Treat this as a high-priority Apple fleet hygiene issue because kernel privileges are involved. There is no provided evidence of active exploitation, but vulnerable endpoints should still be updated promptly, especially where users can install apps.
Technical view
Apple describes the flaw as an integer overflow addressed with improved input validation. The stated impact is that an app may execute arbitrary code with kernel privileges. The source bundle does not identify the exact kernel component, CVSS score, CWE, exploit prerequisites, or affected build ranges beyond fixed OS releases.
Likely exposure
Exposure is most likely on Apple devices running versions earlier than iOS/iPadOS 16.6 or 15.7.8, macOS Ventura 13.5, macOS Monterey 12.6.8, tvOS 16.6, or watchOS 9.6. The source data lists affected versions as unspecified.
Exploitation context
The bundle marks KEV as false and provides no cited evidence of active exploitation. The stated scenario requires an app able to reach the vulnerable kernel path, but public source details are limited and do not describe attack mechanics.
Researcher notes
Public details are sparse: no CVSS, CWE, component name, or affected build matrix is provided. The safest grounded interpretation is local app-to-kernel arbitrary code execution from an integer overflow, fixed by Apple through input validation improvements.
Mitigation direction
- Update affected Apple devices to the fixed OS releases or later.
- Prioritize managed macOS, iOS, and iPadOS fleets with app installation risk.
- Use MDM to enforce minimum OS versions where available.
- Check Apple guidance for any superseding security updates.
- Track exceptions for devices that cannot receive fixed releases.
Validation and detection
- Inventory Apple device OS versions across MDM and endpoint tooling.
- Confirm devices meet or exceed the listed fixed releases.
- Flag older macOS, iOS, iPadOS, tvOS, and watchOS builds.
- Review Apple security update records for CVE-2023-36495 coverage.
- Document unsupported or unmanaged devices requiring compensating controls.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2023-36495 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://support.apple.com/en-us/HT213846CVE reference
- https://support.apple.com/en-us/HT213841CVE reference
- https://support.apple.com/en-us/HT213843CVE reference
- https://support.apple.com/en-us/HT213842CVE reference
- https://support.apple.com/en-us/HT213844CVE reference
- https://support.apple.com/en-us/HT213848CVE reference
- https://support.apple.com/kb/HT213843CVE reference
- https://support.apple.com/kb/HT213844CVE reference
- https://support.apple.com/kb/HT213841CVE reference
- https://support.apple.com/kb/HT213846CVE reference
- https://support.apple.com/kb/HT213842CVE reference
- https://support.apple.com/kb/HT213848CVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.