Apple iOS/iPadOS up to 16.3.1 CarPlay buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.4$5k-$25k0.00

Summaryinfo

A vulnerability classified as critical was found in Apple iOS and iPadOS up to 16.3.1. This affects an unknown part of the component CarPlay. Such manipulation leads to buffer overflow. This vulnerability is documented as CVE-2023-23494. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Apple iOS and iPadOS up to 16.3.1 (Smartphone Operating System). Affected by this issue is an unknown function of the component CarPlay. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is availability. CVE summarizes:

A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 16.4 and iPadOS 16.4. A user in a privileged network position may be able to cause a denial-of-service.

The weakness was released 03/27/2023 by Itay Iellin as HT213676 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2023-23494. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 10/08/2025). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

A user in a privileged network position may be able to cause a denial-of-service

Upgrading to version 16.4 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

A buffer overflow was addressed with improved bounds checking.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-27594). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Vendor

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.9
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CNA Base Score: 5.3
CNA Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: iOS/iPadOS 16.4

Timelineinfo

01/12/2023 🔍
03/27/2023 +73 days 🔍
03/27/2023 +0 days 🔍
03/29/2023 +2 days 🔍
10/08/2025 +924 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT213676
Researcher: Itay Iellin
Status: Confirmed

CVE: CVE-2023-23494 (🔍)
GCVE (CVE): GCVE-0-2023-23494
GCVE (VulDB): GCVE-100-224336
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 03/29/2023 09:50
Updated: 10/08/2025 20:08
Changes: 03/29/2023 09:50 (19), 03/29/2023 09:53 (28), 04/16/2023 18:31 (1), 01/29/2025 17:48 (36), 10/08/2025 20:08 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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