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    CVE-2022-40303

    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.

    Published:Oct 14, 2022
    Last Modified:Apr 29, 2025
    EPS:Nov 22, 2022
    EPSS Score:0.00181
    CVSS Score:7.5

    Affected Products

    Vendor
    Apple
    Product
    Ipados
    Vendor
    Apple
    Product
    Iphone Os
    Vendor
    Apple
    Product
    Macos
    Vendor
    Apple
    Product
    Tvos
    Vendor
    Apple
    Product
    Watchos
    Vendor
    Netapp
    Product
    Active Iq Unified Manager
    Vendor
    Netapp
    Product
    Clustered Data Ontap
    Vendor
    Netapp
    Product
    Clustered Data Ontap Antivirus Connector
    Vendor
    Netapp
    Product
    H300s
    Vendor
    Netapp
    Product
    H300s Firmware
    Vendor
    Netapp
    Product
    H410c
    Vendor
    Netapp
    Product
    H410c Firmware
    Vendor
    Netapp
    Product
    H410s
    Vendor
    Netapp
    Product
    H410s Firmware
    Vendor
    Netapp
    Product
    H500s
    Vendor
    Netapp
    Product
    H500s Firmware
    Vendor
    Netapp
    Product
    H700s
    Vendor
    Netapp
    Product
    H700s Firmware
    Vendor
    Netapp
    Product
    Netapp Manageability Sdk
    Vendor
    Netapp
    Product
    Ontap Select Deploy Administration Utility
    Vendor
    Netapp
    Product
    Snapmanager
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Jboss Core Services
    Vendor
    Redhat
    Product
    Rhel Eus
    Vendor
    Xmlsoft
    Product
    Libxml2

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-190 Integer Overflow or Wraparound

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

    Related CVEs

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    CVE-2026-65331 (CVSS 4.3) — This issue was addressed through improved state management. This issue is fixed in Safari 26.6.1, iOS 18.7.10 …
    CVE-2026-64760 (CVSS 5.5) — An information leakage was addressed with additional validation. This issue is fixed in iOS 18.7.10 and iPadOS…
    CVE-2026-43794 (CVSS 8.8) — A memory corruption issue was addressed with improved memory handling. This issue is fixed in Safari 26.6.1, i…
    CVE-2026-65346 (CVSS 8.8) — An integer overflow was addressed with improved input validation. This issue is fixed in iOS 26.6.1 and iPadOS…
    CVE-2026-65351 (CVSS 4.3) — This issue was addressed through improved state management. This issue is fixed in Safari 26.6.1, iOS 26.6.1 a…
    CVE-2026-64782 (CVSS 3.1) — A memory corruption vulnerability was addressed with improved locking. This issue is fixed in Safari 26.6.1, i…
    CVE-2026-65347 (CVSS 6.5) — The issue was addressed with improved checks. This issue is fixed in iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe…
    CVE-2026-43795 (CVSS 4.3) — The issue was addressed with improved memory handling. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and i…

    References

    http://seclists.org/fulldisclosure/2022/Dec/21
    http://seclists.org/fulldisclosure/2022/Dec/24
    http://seclists.org/fulldisclosure/2022/Dec/25
    http://seclists.org/fulldisclosure/2022/Dec/26
    http://seclists.org/fulldisclosure/2022/Dec/27
    https://gitlab.gnome.org/GNOME/libxml2/-/commit/c846986356fc149915a74972bf198abc266bc2c0
    https://gitlab.gnome.org/GNOME/libxml2/-/tags/v2.10.3
    https://security.netapp.com/advisory/ntap-20221209-0003/
    https://support.apple.com/kb/HT213531
    https://support.apple.com/kb/HT213533
    https://support.apple.com/kb/HT213534
    https://support.apple.com/kb/HT213535
    https://support.apple.com/kb/HT213536
    http://seclists.org/fulldisclosure/2022/Dec/21
    http://seclists.org/fulldisclosure/2022/Dec/24
    http://seclists.org/fulldisclosure/2022/Dec/25
    http://seclists.org/fulldisclosure/2022/Dec/26
    http://seclists.org/fulldisclosure/2022/Dec/27
    https://gitlab.gnome.org/GNOME/libxml2/-/commit/c846986356fc149915a74972bf198abc266bc2c0
    https://gitlab.gnome.org/GNOME/libxml2/-/tags/v2.10.3
    https://security.netapp.com/advisory/ntap-20221209-0003/
    https://support.apple.com/kb/HT213531
    https://support.apple.com/kb/HT213533
    https://support.apple.com/kb/HT213534
    https://support.apple.com/kb/HT213535
    https://support.apple.com/kb/HT213536

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High