Apple macOS up to 12.3 WebKit memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Apple macOS up to 12.3. The affected element is an unknown function of the component WebKit. The manipulation results in memory corruption. This vulnerability is cataloged as CVE-2022-26700. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Apple macOS up to 12.3 (Operating System). It has been classified as critical. Affected is an unknown code block of the component WebKit. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A memory corruption issue was addressed with improved state management. This issue is fixed in tvOS 15.5, watchOS 8.6, iOS 15.5 and iPadOS 15.5, macOS Monterey 12.4, Safari 15.5. Processing maliciously crafted web content may lead to code execution.

The weakness was shared 05/16/2022 by ryuzaki as HT213257 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is traded as CVE-2022-26700. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (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 code execution

Upgrading to version 12.4 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

A memory corruption issue was addressed with improved state management.

The vulnerability is also documented in the vulnerability database at 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

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

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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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: macOS 12.4

Timelineinfo

03/08/2022 🔍
05/16/2022 +68 days 🔍
05/16/2022 +0 days 🔍
05/18/2022 +2 days 🔍
11/30/2025 +1292 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT213257
Researcher: ryuzaki
Status: Confirmed

CVE: CVE-2022-26700 (🔍)
GCVE (CVE): GCVE-0-2022-26700
GCVE (VulDB): GCVE-100-200184
CERT Bund: WID-SEC-2022-2044 - Red Hat Enterprise Linux: Mehrere Schwachstellen

scip Labs: https://www.scip.ch/en/?labs.20180712

Entryinfo

Created: 05/18/2022 07:35
Updated: 11/30/2025 07:18
Changes: 05/18/2022 07:35 (9), 05/18/2022 07:36 (10), 05/18/2022 07:39 (28), 05/25/2022 08:50 (1), 05/23/2025 03:15 (27), 11/30/2025 07:18 (7)
Complete: 🔍
Cache ID: 216::103

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

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