Is CVE-2023-28206 being actively exploited?

Yes. CVE-2023-28206 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added on April 10, 2023.

What is the CVSS score for CVE-2023-28206?

CVE-2023-28206 has a CVSS 3.1 base score of 8.6 (HIGH).

CVE-2023-28206

HIGH · CVSS 8.6CISA KEV: actively exploitedEPSS 23.2%EU EUVD: exploited

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.

Key facts

CVSS score: 8.6 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Weakness (CWE): CWE-787
EPSS score: 23.2% (98th percentile)
In CISA KEV: Yes, added April 10, 2023
In EU EUVD: Yes (EUVD-2023-31914)
Published: April 10, 2023
NVD last modified: June 17, 2026
Status: Analyzed

CISA Known Exploited Vulnerability

Apple iOS, iPadOS, and macOS IOSurfaceAccelerator Out-of-Bounds Write Vulnerability

Added to the KEV catalog on April 10, 2023; federal remediation due May 1, 2023.

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2023-31914 in the EU Vulnerability Database. ENISA flags it as known exploited. Last updated in EUVD on October 21, 2025.

View on the EU Vulnerability Database

Affected products

apple / ipados
apple / iphone os
apple / macos

Certified products that may be affected

15 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Strong Customer Authentication pour Apple Pay sur Mac mini avec M1 et Magic keyboard avec Touch ID, exécutant macOS Monterey 12.3.1 (Version 12.3.1 (build 21E258)) - Apple Inc. - Common Criteria ANSSI-CC-2023/19 - active
Strong Customer Authentication pour Apple Pay sur MacBook Air 2020 avec M1 exécutant macOS Monterey 12.3.1 (Version 12.3.1 (build 21E258)) - Apple Inc. - Common Criteria ANSSI-CC-2023/16 - active
Strong Customer Authentication pour Apple Pay sur iPhone SE (2nde génération) avec A13 Bionic exécutant iOS 15.4.1 (Version 15.4.1 (build 19E258)) - Apple Inc. - Common Criteria ANSSI-CC-2023/15 - active
Strong Customer Authentication pour Apple Pay sur iPhone 13 avec A15 Bionic exécutant iOS 15.4.1 Version 15.4.1 (build 19E258) - Apple Inc. - Common Criteria ANSSI-CC-2023/18 - active
Strong Customer Authentication pour Apple Pay, sur MacBook Air 2020 avec M1 exécutant macOS Big Sur 11.3.1 - Apple Inc. - Common Criteria ANSSI-CC-2022/44 - active

See all 15 in the Security Certifications Explorer.

References

https://support.apple.com/en-us/HT213720(Release Notes, Vendor Advisory)
https://support.apple.com/en-us/HT213721(Release Notes, Vendor Advisory)
https://support.apple.com/en-us/HT213723(Release Notes, Vendor Advisory)
https://support.apple.com/en-us/HT213724(Release Notes, Vendor Advisory)
https://support.apple.com/en-us/HT213725(Release Notes, Vendor Advisory)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-28206(US Government Resource)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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