Apple tvOS up to 15.4.1 WebKit use after free

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.
6.0	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Apple tvOS up to 15.4.1 and classified as critical. This affects an unknown function of the component WebKit. Such manipulation leads to use after free. This vulnerability is referenced as CVE-2022-26717. It is possible to launch the attack remotely. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple tvOS up to 15.4.1 (Digital Media Player) and classified as critical. Affected by this issue is an unknown code of the component WebKit. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability.

The weakness was published 05/16/2022 by Jeonghoon Shin as HT213254 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2022-26717. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The advisory points out:

Processing maliciously crafted web content may lead to arbitrary code execution

Upgrading to version 15.5 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 databases at EUVD (EUVD-2022-31267) and CERT Bund (WID-SEC-2022-2044). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

Amazon Linux 2
Red Hat Enterprise Linux
Oracle Linux
Red Hat OpenShift
Gentoo Linux
RESF Rocky Linux

Productinfo

Type

Digital Media Player

Vendor

Apple

Name

tvOS

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: 6.3
VulDB Meta Temp Score: 6.0

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

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: 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: 🔍

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: tvOS 15.5

Timelineinfo

03/08/2022 🔍
05/16/2022 +68 days 🔍
05/16/2022 +0 days 🔍
05/18/2022 +2 days 🔍
05/11/2026 +1454 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT213254
Researcher: Jeonghoon Shin
Status: Confirmed

CVE: CVE-2022-26717 (🔍)
GCVE (CVE): GCVE-0-2022-26717
GCVE (VulDB): GCVE-100-200120
EUVD: 🔍
CERT Bund: WID-SEC-2022-2044 - Red Hat Enterprise Linux: Mehrere Schwachstellen

Entryinfo

Created: 05/18/2022 07:02
Updated: 05/11/2026 15:30
Changes: 05/18/2022 07:02 (15), 05/18/2022 07:03 (4), 05/18/2022 07:06 (27), 05/24/2022 14:19 (1), 11/30/2025 09:16 (21), 05/11/2026 15:30 (1)
Complete: 🔍
Cache ID: 216::103

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