CVE-2022-40303: Apple iPadOS

High severity, CVSS 7.5. EPSS: 41.4% chance of exploitation in the next 30 days.

An issue was discovered in libxml2 before 2.10.3. When parsing a multi-gigabyte XML document with the XML_PARSE_HUGE parser option enabled, several integer counters can overflow. This results in an attempt to access an array at a negative 2GB offset, typically leading to a segmentation fault.

Affected products

• Apple iPadOS: before 15.7.2 (fixed in 15.7.2)
• Apple iPhone OS: before 15.7.2 (fixed in 15.7.2)
• Apple macOS: from 11.0, before 11.7.2 (fixed in 11.7.2); from 12.0, before 12.6.2 (fixed in 12.6.2)
• Apple tvOS: before 16.2 (fixed in 16.2)
• Apple watchOS: before 9.2 (fixed in 9.2)
• Netapp Active Iq Unified Manager: affected versions not specified
• Netapp Clustered Data Ontap: affected versions not specified
• Netapp Clustered Data Ontap Antivirus Connector: affected versions not specified
• Netapp h300s Firmware: affected versions not specified
• Netapp h410c Firmware: affected versions not specified
• Netapp h410s Firmware: affected versions not specified
• Netapp h500s Firmware: affected versions not specified
• Netapp h700s Firmware: affected versions not specified
• Netapp Netapp Manageability SDK: affected versions not specified
• Netapp Ontap Select Deploy Administration Utility: affected versions not specified
• Netapp Snapmanager: affected versions not specified
• Xmlsoft LIBXML2: before 2.10.3 (fixed in 2.10.3)

Published 2022-11-23. Last modified 2026-06-17.