Apple iOS up to 16.1.1 WebKit type confusion

CVSS Meta Temp Score
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CTI Interest Score
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7.9$5k-$25k0.00

Summaryinfo

A vulnerability was found in Apple iOS up to 16.1.1. It has been declared as critical. This issue affects some unknown processing of the component WebKit. The manipulation results in type confusion. This vulnerability is reported as CVE-2022-42856. The attack can be launched remotely. Moreover, an exploit is present. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Apple iOS up to 16.1.1 (Smartphone Operating System). Affected is some unknown processing of the component WebKit. The manipulation with an unknown input leads to a type confusion vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 12/14/2022 as HT213516. The advisory is available at support.apple.com. This vulnerability is traded as CVE-2022-42856. Successful exploitation requires user interaction by the victim. Technical details are unknown but an exploit is available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 06/17/2025). It is expected to see the exploit prices for this product increasing in the near future.

It is declared as attacked. The vulnerability scanner Nessus provides a plugin with the ID 239990 (TencentOS Server 3: webkit2gtk3 (TSSA-2023:0001)), which helps to determine the existence of the flaw in a target environment. This issue was added on 12/14/2022 to the CISA Known Exploited Vulnerabilities Catalog with a due date of 01/04/2023:

Apply updates per vendor instructions.

Upgrading to version 16.1.2 eliminates this vulnerability.

The vulnerability is also documented in the databases at Zero-Day.cz (740) and Tenable (239990). If you want to get best quality of vulnerability data, you may have to visit VulDB.

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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Nessus ID: 239990
Nessus Name: TencentOS Server 3: webkit2gtk3 (TSSA-2023:0001)

Zero-Day.cz: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: iOS 16.1.2

Timelineinfo

10/11/2022 🔍
12/14/2022 +64 days 🔍
12/14/2022 +0 days 🔍
06/17/2025 +916 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT213516
Status: Confirmed

CVE: CVE-2022-42856 (🔍)
GCVE (CVE): GCVE-0-2022-42856
GCVE (VulDB): GCVE-100-215802
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 12/14/2022 12:07
Updated: 06/17/2025 17:06
Changes: 12/14/2022 12:07 (41), 01/12/2023 14:45 (2), 04/28/2024 06:15 (23), 06/15/2024 15:47 (2), 06/29/2024 04:21 (12), 09/26/2024 12:40 (2), 01/29/2025 02:04 (11), 04/28/2025 15:05 (3), 06/17/2025 17:06 (2)
Complete: 🔍
Cache ID: 216::103

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

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