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ExploitedIn CISA KEVFix available

CVE-2023-28206

Exploitation confirmed. First attested on 2023-04-10 by CISA-ADP, CISA KEV, GCVE · kevintel.

  • Published2023-04-10
  • Fixed in13.3.1 · 12.6.5 · 11.7.6
  • WeaknessCWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2023-04-10Added to the CISA KEV catalogCISA KEV
  2. 2023-04-10Listed as exploited by GCVEGCVE
  3. 2023-04-10Exploitation first reportedCISA KEV
  4. 2023-04-1019:15CVE publishedNVD
  5. 2025-01-2816:31SSVC exploitation set to activeCISA-ADP

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-28206?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-28206?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Apple macos
BranchAffectedFixed in
13.x≥ 13.0, < 13.3.113.3.1
12.x≥ 12.0, < 12.6.512.6.5
11.7< 11.7.611.7.6
Apple ipados
BranchAffectedFixed in
16.x≥ 16.0, < 16.4.116.4.1
15.7< 15.7.515.7.5
Apple iphone os
BranchAffectedFixed in
16.x≥ 16.0, < 16.4.116.4.1
15.7< 15.7.515.7.5

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA5 products

As apple, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Apple iOS and iPadOS
    Affected
    • < 15.7fixed in 15.7custom
  • Apple macOS
    Affected
    • < 11.7fixed in 11.7custom
  • Apple macOS
    Affected
    • < 12.6fixed in 12.6custom
  • Apple macOS
    Affected
    • < 13.3fixed in 13.3custom
  • Apple iOS and iPadOS
    Affected
    • < 16.4fixed in 16.4custom

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2023-07-27

Fix

  1. Update Apple macos to 13.3.1 · 12.6.5 · 11.7.6
  2. CISA’s required action: Apply updates per vendor instructions.due 2023-05-01

Advisories and patches

Detection

read 2026-11-02 22:42 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
1 repository, unverifiedacceleratortroll/acceleratortroll
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

CISA Known Exploited Vulnerability

Date Added
2023-04-10
Patch Due Date
2023-05-01
Ransomware Use
Unknown
Required Action
Apply updates per vendor instructions.

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Published
2023-04-10
Last Modified
2026-06-17
NVD status
Analyzed

Frequently asked questions

What is CVE-2023-28206?

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.

Is CVE-2023-28206 actively exploited?

Yes. CVE-2023-28206 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2023-05-01.

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

CVE-2023-28206 has a CVSS v3 base score of 8.6 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

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