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    CVE-2024-28757

    libexpat through 2.6.1 allows an XML Entity Expansion attack when there is isolated use of external parsers (created via XML_ExternalEntityParserCreate).

    Published:Mar 10, 2024
    Last Modified:Nov 4, 2025
    EPS:Mar 10, 2024
    EPSS Score:0.00741
    CVSS Score:7.5

    Affected Products

    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Libexpat Project
    Product
    Libexpat
    Vendor
    Netapp
    Product
    Active Iq Unified Manager
    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
    H610c
    Vendor
    Netapp
    Product
    H610c Firmware
    Vendor
    Netapp
    Product
    H610s
    Vendor
    Netapp
    Product
    H610s Firmware
    Vendor
    Netapp
    Product
    H700s
    Vendor
    Netapp
    Product
    H700s Firmware
    Vendor
    Netapp
    Product
    Oncommand Workflow Automation
    Vendor
    Netapp
    Product
    Ontap
    Vendor
    Netapp
    Product
    Ontap Tools
    Vendor
    Netapp
    Product
    Windows Host Utilities
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Eus

    Exploits

    https://github.com/libexpat/libexpat/issues/839https://github.com/libexpat/libexpat/issues/839https://github.com/RenukaSelvar/expat_CVE-2024-28757https://github.com/saurabh2088/expat_2_1_0_CVE-2024-28757https://github.com/saurabh2088/expat_2_1_1_CVE-2024-28757

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-197 Exponential Data Expansion

    Related CVEs

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    CVE-2026-35094 (CVSS 3.3) — A flaw was found in libinput. An attacker capable of deploying a Lua plugin file in specific system directorie…
    CVE-2026-35093 (CVSS 8.8) — A flaw was found in libinput. A local attacker who can place a specially crafted Lua bytecode file in certain …
    CVE-2024-3056 (CVSS 7.7) — A flaw was found in Podman. This issue may allow an attacker to create a specially crafted container that, whe…
    CVE-2024-6293 (CVSS 8.8) — Use after free in Dawn in Google Chrome prior to 126.0.6478.126 allowed a remote attacker to potentially explo…
    CVE-2024-6292 (CVSS 8.8) — Use after free in Dawn in Google Chrome prior to 126.0.6478.126 allowed a remote attacker to potentially explo…
    CVE-2024-6291 (CVSS 8.8) — Use after free in Swiftshader in Google Chrome prior to 126.0.6478.126 allowed a remote attacker to potentiall…
    CVE-2024-6290 (CVSS 8.8) — Use after free in Dawn in Google Chrome prior to 126.0.6478.126 allowed a remote attacker to potentially explo…
    CVE-2024-38277 (CVSS 5.4) — A unique key should be generated for a user's QR login key and their auto-login key, so the same key cannot be…

    References

    http://www.openwall.com/lists/oss-security/2024/03/15/1
    https://github.com/libexpat/libexpat/issues/839
    https://github.com/libexpat/libexpat/pull/842
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FPLC6WDSRDUYS7F7JWAOVOHFNOUQ43DD/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LKJ7V5F6LJCEQJXDBWGT27J7NAP3E3N7/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VK2O34GH43NTHBZBN7G5Y6YKJKPUCTBE/
    https://security.netapp.com/advisory/ntap-20240322-0001/
    http://www.openwall.com/lists/oss-security/2024/03/15/1
    https://github.com/libexpat/libexpat/issues/839
    https://github.com/libexpat/libexpat/pull/842
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FPLC6WDSRDUYS7F7JWAOVOHFNOUQ43DD/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LKJ7V5F6LJCEQJXDBWGT27J7NAP3E3N7/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VK2O34GH43NTHBZBN7G5Y6YKJKPUCTBE/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/FPLC6WDSRDUYS7F7JWAOVOHFNOUQ43DD/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/LKJ7V5F6LJCEQJXDBWGT27J7NAP3E3N7/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/VK2O34GH43NTHBZBN7G5Y6YKJKPUCTBE/
    https://security.netapp.com/advisory/ntap-20240322-0001/

    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