CVE-2023-38606
CVE-2023-38606 — Apple Multiple Products Kernel Unspecified Vulnerability
This issue was addressed with improved state management. This issue is fixed in macOS Monterey 12.6.8, iOS 15.7.8 and iPadOS 15.7.8, iOS 16.6 and iPadOS 16.6, tvOS 16.6, macOS Big Sur 11.7.9, macOS Ventura 13.5, watchOS 9.6. An app may be able to modify sensitive kernel state. Apple is aware of a report that this issue may have been actively exploited against versions of iOS released before iOS 15.7.1.
Published Updated Sources: NVD, CISA, FIRST EPSS
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the scoring sources call it.
Exploitation
Confirmed
CISA KEV, listed Jul 26, 2023
EPSS
3%
ahead of 86% of scored CVEs
CVSS base
5.5
medium · 2 sources
CISA SSVC assessment
Three decision points CISA publishes for the CVEs it assesses · SSVC 2.0.3. A stakeholder decision, not a severity score.
Exploitation
Active
none · proof-of-concept · active
Automatable
No
can an attacker script all four kill-chain steps
Technical impact
Partial
partial · total control of the vulnerable component
Remediation
The vendor's own words where we have them.
Upgrade tvos to a fixed release. Apply vendor patches per advisory and restrict external exposure of the affected component until patched.
CISA required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Federal deadline Aug 16, 2023 — passed 1,132 days ago
First 24 hours
Ordered from the record's own fields — exposure first, because you cannot patch what you have not found.
- Identify exposed assets running affected vendor/product/version combinations.
- Treat as emergency remediation because CISA KEV status is present.
- Search available logs for exploit probes, errors, authentication anomalies, or suspicious child processes matching the vulnerability class.
Affected scope
Vendor, product and version as the advisories word them.
| Vendor | Product | Versions | Status |
|---|---|---|---|
| apple | tvos | — | Vulnerable |
| apple | ios_and_ipados | — | Vulnerable |
| apple | macos | — | Vulnerable |
| apple | watchos | — | Vulnerable |
Attack characteristics
The CVSS vector, decoded. It describes the attack, not your exposure to it.
Availability
None
Confidentiality
None
Integrity
High
Scope
Unchanged
Attack Complexity
Low
Attack Vector
Local
Privileges Req
None
User Interaction
Required
Every base score collected
Sources score independently and disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Source |
|---|---|---|---|---|---|
| 5.5 | CVSS 3.1 | medium | 1.8 | 3.6 | NVD |
| 5.5 | CVSS 3.1 | medium | 1.8 | 3.6 | CNA |
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
CISA KEV details
CISA lists a CVE here once it has evidence of exploitation against real targets.
Listed
Jul 26, 2023
Federal deadline
Aug 16, 2023
passed 1,132 days ago
Ransomware use
Unknown
CISA records ransomware use only for campaigns it has confirmed, so “Unknown” means unrecorded, not ruled out. The deadline binds US federal agencies; for everyone else it is a date to argue against.
Timeline
What happened to this CVE, newest first — with the readings a source repeats on a schedule counted underneath rather than listed.
- 2026
Added · CVSS 3.1 5.5 (AV:L)
Jun 17, 2026 · NVD
- 2023
Initial · CVE published
Jul 27, 2023 · NVD
Added to CISA KEV catalog
Jul 26, 2023 · CISA
References
9 on the record
- support.apple.com/en-us/HT213841
Vendor Advisory
- support.apple.com/en-us/HT213842
Vendor Advisory
- support.apple.com/en-us/HT213843
Vendor Advisory
- support.apple.com/en-us/HT213844
Vendor Advisory
- support.apple.com/en-us/HT213845
Vendor Advisory
- support.apple.com/en-us/HT213846
Vendor Advisory
- support.apple.com/en-us/HT213848
Vendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-38606
US Government Resource
Elsewhere on this site
- appleevery CVE for this vendor
- July 2023what else CISA listed
- Unclassifiedsame class
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.
Answered from this record1
What should defenders know first?
CVE-2023-38606 is Apple Multiple Products Kernel Unspecified Vulnerability, a medium vulnerability affecting tvos, ios_and_ipados, macos, watchos from apple. The current evidence lists it in CISA KEV, and the exploit status is: Yes: CISA KEV signal present. Public exploit evidence is: A public PoC is not confirmed from current sources for CVE-2023-38606. The affected-version evidence is listed in the key facts and affected products tables. Defenders should first verify whether exposed or business-critical assets run those versions, then apply vendor patches or mitigations, restrict reachable attack surface, and preserve logs for detection review. CVSS 5.5 describes technical severity, while EPSS 3% helps estimate near-term exploit likelihood; neither replaces asset context. Unknown fields should remain explicit in tickets, and threat actor, IOC, victimology, or payload claims should not be added unless a cited source supports them. Monitor CISA KEV, vendor advisories, NVD changes, public PoC repositories, and internal telemetry for update triggers.