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Vulnerabilities/CVE-2023-28206Public Intelligence Dossier
Source: apple · Limited verification•Last verified: •Collection Degraded
CVE-2023-28206ListedHIGH (raw)CVSS 8.6CWE-787

An out-of-bounds write issue was addressed with improved input validation

Published: 11 Apr 2023•Last updated: 17 Jun 2026, 11:17 AM IST•Source identifier: product-security@apple.com
Dossier completeness: source-provided sections 3 / 3 · rule guidance not available. Missing source facts count as incomplete.
Official source
CISA KEV catalog
Listed
Added10 Apr 2023
Due01 May 2023
RansomwareUnknown
CVSS score
8.6HIGH (raw)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Metric sourcenvd@nist.gov
EPSS probability
23.2%0.232
Percentile98th
Weakness type
CWE-787
No further CWE recorded
Remediation
Patch status unknown
No fixed version or KB recorded

Why It Matters

Analysis dossier

Why It Matters

An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in macOS Monterey 12.6.5, iOS 16.4.1 and iPadOS 16.4.1, macOS Ventura 13.3.1, iOS 15.7.5 and iPadOS 15.7.5, macOS Big Sur 11.7.6. 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.

SOC priority

Immediate Attention

Actively exploited (source statement)

Yes

Publicly disclosed

Unknown

Risk basis: CISA KEV exploitation signal; HIGH severity; Source-confirmed exploitation or CISA KEV/ransomware metadata

Affected Products & Remediation

3 source-backed products
Affected products and versions (source)
  • apple ipados · < 15.7.5; >= 16.0 < 16.4.1 · NVD CPE · Source
  • apple iphone os · < 15.7.5; >= 16.0 < 16.4.1 · NVD CPE · Source
  • apple macos · < 11.7.6; >= 12.0 < 12.6.5; >= 13.0 < 13.3.1 · NVD CPE · Source
Recorded patch / KBNot provided by source

Vendor or catalog guidance (source)

  • CISA KEV: Apply updates per vendor instructions.

Known exploitation (source facts)

Only what a source states. Unknown means no source has said either way; it is not "not exploited".

CISA KEV
Listed
Exploited (source statement)
Yes
Publicly disclosed (source)
Unknown

CISA required action: Apply updates per vendor instructions.

Suggested hunting (rule-based inference)

SecOps Signal recommendation (rule-based inference). These steps are hunting hypotheses from the vulnerability class; they do not state or imply that exploitation occurred here or anywhere.

No rule-based guidance for this vulnerability class

CISA KEV Record

Catalog entry
10 Apr 2023
Required action due
01 May 2023
Known ransomware use
Unknown

Apply updates per vendor instructions.

Change History & Source Data

— No recorded material change

CNA / source
product-security@apple.com
Record status · verification
UPDATED · CISA KEV confirmed
CPE
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*, cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*, cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*

Evidence & Provenance

4 public sources
CISA KEV CatalogAdded 2023-04-10support.apple.comSource recordnvd.nist.govSource recordsupport.apple.comSource record

Linked by the query's stored exact CVE association. Review required tables and validation status before use.

Detection Hunting Query
Target: DeviceTvmSoftwareVulnerabilities•Defender XDR
Detect endpoints exposed to CVE-2023-28206
Purpose: Exposure assessment (Category: Exposure Check)Why linked: Query metadata names CVE-2023-28206
DeviceTvmSoftwareVulnerabilities| where CveId == "CVE-2023-28206"| project DeviceId, DeviceName, OSPlatform, OSVersion, SoftwareVendor, SoftwareName, SoftwareVersion, CveId, VulnerabilitySeverityLevel, RecommendedSecurityUpdate, RecommendedSecurityUpdateId| sort by VulnerabilitySeverityLevel desc
Schema Checked · Not runtime validatedSource: SecOps Signal deterministic template · Limited verificationStatic screening: Passed structure and schema checks; tenant execution is not verified.
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Correlated briefings

SecOps Signal surfaces public advisory facts only. A missing value means the source has not published it, not that your environment is unaffected. No tenant inventory is connected.