CVE-2023-40423 json
The issue was addressed with improved memory handling.
published 2023-10-25 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-44994
- cvss
- 7.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 36%
- public exploits
- 0
- none known
Summary
The issue was addressed with improved memory handling. This issue is fixed in iOS 17.1 and iPadOS 17.1, macOS Monterey 12.7.1, iOS 16.7.2 and iPadOS 16.7.2, macOS Ventura 13.6.1, macOS Sonoma 14.1. An app may be able to execute arbitrary code with kernel privileges.
Patch / fix
- Apple iOS and iPadOS 16.7, 17.1
- Apple macOS 12.7, 13.6, 14.1
- apple ios_and_ipados 16.7, 17.1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 2 y ago
Exploit prediction
0.42% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected products
- Apple iOS and iPadOS
- Apple macOS
- apple ios_and_ipados
Classification
- Weakness
-
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
-
support.apple.com
/en-us/HT213981
release-notes, vendor-advisory
-
support.apple.com
/en-us/HT213984
release-notes, vendor-advisory
-
support.apple.com
/en-us/HT213985
release-notes, vendor-advisory
-
support.apple.com
/en-us/HT213982
release-notes, vendor-advisory
-
support.apple.com
/en-us/HT213983
release-notes, vendor-advisory
-
support.apple.com
/kb/HT213982
release-notes, vendor-advisory
-
support.apple.com
/kb/HT213984
release-notes, vendor-advisory
-
support.apple.com
/kb/HT213985
release-notes, vendor-advisory
-
support.apple.com
/kb/HT213981
release-notes, vendor-advisory
-
support.apple.com
/kb/HT213983
release-notes, vendor-advisory
-
seclists.org
/fulldisclosure/2023/Oct/23
mailing-list, third-party-advisory
-
seclists.org
/fulldisclosure/2023/Oct/19
mailing-list, third-party-advisory
-
seclists.org
/fulldisclosure/2023/Oct/21
mailing-list, third-party-advisory
-
seclists.org
/fulldisclosure/2023/Oct/24
mailing-list, third-party-advisory
-
seclists.org
/fulldisclosure/2023/Oct/26
mailing-list, third-party-advisory
Sources
- CVE List CVE-2023-40423
- NVD CVE-2023-40423
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.