Apple macOS up to 13.2.0 WebKit type confusion

CVSS Meta Temp Score
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CTI Interest Score
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7.9$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Apple macOS up to 13.2.0. This affects an unknown part of the component WebKit. Executing a manipulation can lead to type confusion. This vulnerability appears as CVE-2023-23529. The attack may be performed from remote. In addition, an exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Apple macOS up to 13.2.0 (Operating System). It has been declared as critical. This vulnerability affects an unknown function of the component WebKit. The manipulation with an unknown input leads to a type confusion vulnerability. The CWE definition for the vulnerability is CWE-843. The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was presented 02/13/2023 as HT213633 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability was named CVE-2023-23529. Successful exploitation requires user interaction by the victim. Technical details are unknown but an exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 10/12/2025). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

It is declared as attacked. This issue was added on 02/14/2023 to the CISA Known Exploited Vulnerabilities Catalog with a due date of 03/07/2023:

Apply updates per vendor instructions.

Upgrading to version 13.2.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

A type confusion issue was addressed with improved checks.

The vulnerability is also documented in the databases at Zero-Day.cz (745) and EUVD (EUVD-2023-27629). Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CNA Base Score: 8.8
CNA Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Type confusion
CWE: CWE-843
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Attacked

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
KEV Notice: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Zero-Day.cz: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: macOS 13.2.1

Timelineinfo

01/12/2023 🔍
02/13/2023 +32 days 🔍
02/13/2023 +0 days 🔍
02/14/2023 +1 days 🔍
10/12/2025 +971 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT213633
Status: Confirmed

CVE: CVE-2023-23529 (🔍)
GCVE (CVE): GCVE-0-2023-23529
GCVE (VulDB): GCVE-100-220948
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20180712

Entryinfo

Created: 02/14/2023 16:24
Updated: 10/12/2025 08:49
Changes: 02/14/2023 16:24 (18), 02/14/2023 16:28 (29), 03/15/2023 07:48 (2), 03/15/2023 07:54 (11), 04/28/2024 08:28 (23), 05/15/2024 17:15 (1), 06/15/2024 08:02 (2), 09/27/2024 00:47 (2), 01/29/2025 02:04 (11), 04/27/2025 23:32 (3), 10/12/2025 08:49 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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