Apple iOS/iPadOS up to 16.2 WebKit memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.4$5k-$25k0.00

Summaryinfo

A vulnerability was found in Apple iOS and iPadOS up to 16.2. It has been declared as critical. Affected is an unknown function of the component WebKit. Such manipulation leads to memory corruption. This vulnerability is listed as CVE-2023-23517. The attack may be performed from remote. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple iOS and iPadOS up to 16.2 (Smartphone Operating System) and classified as critical. Affected by this issue is some unknown processing of the component WebKit. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The issue was addressed with improved memory handling. This issue is fixed in macOS Monterey 12.6.3, macOS Ventura 13.2, watchOS 9.3, macOS Big Sur 11.7.3, Safari 16.3, tvOS 16.3, iOS 16.3 and iPadOS 16.3. Processing maliciously crafted web content may lead to arbitrary code execution.

The weakness was presented 01/23/2023 by YeongHyeon Choi as HT213606 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability is handled as CVE-2023-23517. 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 11/30/2025). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

Processing maliciously crafted web content may lead to arbitrary code execution

The vulnerability scanner Nessus provides a plugin with the ID 212174 (Apple Safari 16.3 Multiple Vulnerabilities (120946)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 16.3 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 memory handling.

The vulnerability is also documented in the databases at Tenable (212174), EUVD (EUVD-2023-27617) and CERT Bund (WID-SEC-2023-1185). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Fedora Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • Gentoo Linux
  • SUSE openSUSE
  • Red Hat OpenShift
  • RESF Rocky Linux

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

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

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Memory corruption
CWE: 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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Nessus ID: 212174
Nessus Name: Apple Safari 16.3 Multiple Vulnerabilities (120946)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: iOS/iPadOS 16.3

Timelineinfo

01/12/2023 🔍
01/23/2023 +11 days 🔍
01/23/2023 +0 days 🔍
01/24/2023 +1 days 🔍
11/30/2025 +1041 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT213606
Researcher: YeongHyeon Choi
Status: Confirmed

CVE: CVE-2023-23517 (🔍)
GCVE (CVE): GCVE-0-2023-23517
GCVE (VulDB): GCVE-100-219218
EUVD: 🔍
CERT Bund: WID-SEC-2023-1185 - Red Hat Enterprise Linux: Mehrere Schwachstellen

scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 01/24/2023 11:02
Updated: 11/30/2025 03:42
Changes: 01/24/2023 11:02 (19), 01/24/2023 11:05 (28), 02/18/2023 16:33 (1), 12/09/2024 18:13 (17), 03/12/2025 02:23 (12), 04/28/2025 04:06 (3), 10/11/2025 22:08 (1), 11/30/2025 03:42 (7)
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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