Apple macOS up to 13.3 dcerpc use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.9$0-$5k0.00

Summaryinfo

A vulnerability has been found in Apple macOS up to 13.3 and classified as critical. Affected by this vulnerability is an unknown functionality of the component dcerpc. Performing a manipulation results in use after free. This vulnerability is cataloged as CVE-2023-32387. It is possible to initiate the attack remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, was found in Apple macOS up to 13.3 (Operating System). This affects an unknown part of the component dcerpc. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.7.7, macOS Monterey 12.6.6, macOS Ventura 13.4. A remote attacker may be able to cause unexpected app termination or arbitrary code execution.

The weakness was shared 05/18/2023 by Dimitrios Tatsis as HT213758 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is uniquely identified as CVE-2023-32387. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/01/2026). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

A remote attacker may be able to cause unexpected app termination or arbitrary code execution

Upgrading to version 13.4 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

A use-after-free issue was addressed with improved memory management.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-36631). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

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: 9.8
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Use after free
CWE: CWE-416 / 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: macOS 13.4

Timelineinfo

05/08/2023 🔍
05/18/2023 +10 days 🔍
05/18/2023 +0 days 🔍
05/20/2023 +2 days 🔍
01/01/2026 +957 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT213758
Researcher: Dimitrios Tatsis
Status: Confirmed

CVE: CVE-2023-32387 (🔍)
GCVE (CVE): GCVE-0-2023-32387
GCVE (VulDB): GCVE-100-229449
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20180712

Entryinfo

Created: 05/20/2023 07:05
Updated: 01/01/2026 19:15
Changes: 05/20/2023 07:05 (13), 05/20/2023 07:06 (6), 05/20/2023 07:09 (28), 06/14/2023 14:39 (1), 11/06/2025 01:37 (27), 01/01/2026 19:15 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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