Apple iOS/iPadOS up to 15.5 CoreText Remote Code Execution

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.9	$5k-$25k	0.00

Summaryinfo

A vulnerability was found in Apple iOS and iPadOS up to 15.5. It has been declared as critical. This issue affects some unknown processing of the component CoreText. The manipulation results in an unknown weakness. This vulnerability is cataloged as CVE-2022-32839. The attack may be launched remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Apple iOS and iPadOS up to 15.5 (Smartphone Operating System). Affected is some unknown processing of the component CoreText. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

The issue was addressed with improved bounds checks. This issue is fixed in macOS Monterey 12.5, macOS Big Sur 11.6.8, Security Update 2022-005 Catalina, iOS 15.6 and iPadOS 15.6, tvOS 15.6, watchOS 8.7. A remote user may cause an unexpected app termination or arbitrary code execution.

The weakness was shared 07/20/2022 with STAR Labs as HT213346 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability is traded as CVE-2022-32839. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 05/29/2025). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

A remote user may cause an unexpected app termination or arbitrary code execution

Upgrading to version 15.6 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

The issue was addressed with improved bounds checks.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Smartphone Operating System

Vendor

Apple

Name

Version

License

commercial

Website

Vendor: https://www.apple.com/

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

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Remote Code Execution
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: iOS/iPadOS 15.6

Timelineinfo

06/09/2022 🔍
07/20/2022 +41 days 🔍
07/20/2022 +0 days 🔍
07/21/2022 +1 days 🔍
05/29/2025 +1043 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT213346
Organization: STAR Labs
Status: Confirmed

CVE: CVE-2022-32839 (🔍)
GCVE (CVE): GCVE-0-2022-32839
GCVE (VulDB): GCVE-100-204714
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 07/21/2022 16:06
Updated: 05/29/2025 21:56
Changes: 07/21/2022 16:06 (18), 07/21/2022 16:09 (28), 08/16/2022 08:43 (1), 05/29/2025 21:56 (27)
Complete: 🔍
Cache ID: 216::103