CVE-2023-28206
HighExploitedPublic exploitAn out-of-bounds write issue was addressed with improved input validation.
Published Jul 12, 2023 · Updated Oct 21, 2025
Key Facts
Patch immediately- CVE-2023-28206 is a high-severity vulnerability (CVSS 8.6 v3.1) affecting Ipados (Apple), Iphone OS (Apple), macOS (Apple) and 1 more product.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Apr 7, 2023. Public exploit code is available.
- EPSS estimates a 23% probability of exploitation in the next 30 days.
- Fixed versions are available, including Ipados 15.7.5, Iphone OS 15.7.5, macOS 11.7.6.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
8.6
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
23%
Higher than 97.7% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2023-28206 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Apr 10, 2023 | May 1, 2023 | Not reported |
| Industry KEV feed | Apr 7, 2023 | May 1, 2023 | Not reported |
| CIRCL KEV | Apr 10, 2023 | May 1, 2023 | Not reported |
| ENISA EUVD | Apr 10, 2023 | n/a | Not reported |
Required action: Apply updates per vendor instructions.
Affected Products
5 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| IpadosApple | See advisory | 15.7.5 |
| Iphone OSApple | See advisory | 15.7.5 |
| macOSApple | >= unspecified | 11.7.6 |
| iOS and iPadOS | >= unspecified | 15.7 |
Patched Releases
Ipados
15.7.5
Iphone OS
15.7.5
macOS
11.7.6, 11.7, 12.6, 13.3
iOS and iPadOS
15.7, 16.4
Timeline
Added to Industry KEV feed
Apr 7, 2023
Added to CISA KEV
Apr 10, 2023
Added to CIRCL KEV
Apr 10, 2023
Added to ENISA EUVD
Apr 10, 2023
Publicly disclosed
Jul 12, 2023
Last updated
Oct 21, 2025
Weakness Type
- CWE-787 Out-of-bounds Write
References
- advisoryhttps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-37450
- advisoryhttps://isc.sans.edu/diary/rss/29972
- advisoryhttps://nakedsecurity.sophos.com/2023/06/22/apple-patch-fixes-zero-day-kernel-hole-reported-by-kaspersky-update-now/
- advisoryhttps://sensorstechforum.com/cve-2023-28206-cve-2023-28205-apple/
- advisoryhttps://support.apple.com/en-us/HT201222
FAQ
Common Questions.
An out-of-bounds write issue was addressed with improved input validation.
Affected: Ipados (Apple); Iphone OS (Apple); macOS (Apple) versions >= unspecified, among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Apr 7, 2023.
Yes. It was added on Apr 10, 2023 with a federal remediation due date of May 1, 2023.
Public exploit code is available.
Fixed versions are available, including Ipados 15.7.5, Iphone OS 15.7.5, macOS 11.7.6.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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