Apple iOS/iPadOS Kernel Memory memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.3$5k-$25k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Apple iOS and iPadOS. This affects an unknown function of the component Kernel Memory Handler. This manipulation causes memory corruption. This vulnerability is registered as CVE-2023-40399. The attack needs to be launched locally. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Apple iOS and iPadOS (Smartphone Operating System) (affected version not known) and classified as problematic. Affected by this vulnerability is some unknown functionality of the component Kernel Memory Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality. The summary by CVE is:

The issue was addressed with improved memory handling. This issue is fixed in tvOS 17, iOS 17 and iPadOS 17, watchOS 10, macOS Sonoma 14. An app may be able to disclose kernel memory.

The weakness was published 09/27/2023. It is possible to read the advisory at support.apple.com. This vulnerability is known as CVE-2023-40399 since 08/14/2023. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 11/06/2025). It is expected to see the exploit prices for this product increasing in the near future.

Upgrading eliminates this vulnerability.

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Productinfo

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/14/2023 🔍
09/27/2023 +44 days 🔍
09/27/2023 +0 days 🔍
11/06/2025 +771 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: support.apple.com
Status: Confirmed

CVE: CVE-2023-40399 (🔍)
GCVE (CVE): GCVE-0-2023-40399
GCVE (VulDB): GCVE-100-240655
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 09/27/2023 19:17
Updated: 11/06/2025 14:01
Changes: 09/27/2023 19:17 (40), 10/20/2023 14:21 (11), 11/06/2025 14:01 (16)
Complete: 🔍
Cache ID: 216::103

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