Apple Safari up to 16.5.2 WebKit 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	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as critical has been found in Apple Safari up to 16.5.2. This affects an unknown function of the component WebKit. Such manipulation leads to an unknown weakness. This vulnerability is documented as CVE-2023-37450. The attack can be executed remotely. Additionally, an exploit exists. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Apple Safari up to 16.5.2 (Web Browser). Affected by this issue is an unknown part of the component WebKit. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The issue was addressed with improved checks. This issue is fixed in iOS 16.6 and iPadOS 16.6, Safari 16.5.2, tvOS 16.6, macOS Ventura 13.5, watchOS 9.6. Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

The weakness was released 07/11/2023 as HT213826. The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2023-37450. 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 02/03/2025).

It is declared as attacked. This issue was added on 07/13/2023 to the CISA Known Exploited Vulnerabilities Catalog with a due date of 08/03/2023:

Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at Zero-Day.cz (785). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Web Browser

Vendor

Apple

Name

Safari

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: 8.8
NVD Vector: 🔍

CNA Base Score: 8.8
CNA 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: Attacked

EPSS Score: 🔍
EPSS Percentile: 🔍

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

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Zero-Day.cz: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/05/2023 🔍
07/11/2023 +6 days 🔍
07/11/2023 +0 days 🔍
04/25/2025 +654 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT213826
Status: Confirmed

CVE: CVE-2023-37450 (🔍)
GCVE (CVE): GCVE-0-2023-37450
GCVE (VulDB): GCVE-100-233516
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 07/11/2023 08:07
Updated: 04/25/2025 07:29
Changes: 07/11/2023 08:07 (39), 07/27/2023 15:42 (1), 04/29/2024 08:28 (23), 05/15/2024 17:15 (1), 06/10/2024 02:26 (2), 06/28/2024 05:32 (12), 09/09/2024 22:30 (1), 02/03/2025 23:43 (11), 04/25/2025 07:29 (3)
Complete: 🔍
Cache ID: 216::103