libexpat through 2.6.1 allows an XML Entity Expansion attack when there is isolated use of external parsers (created via XML_ExternalEntityParserCreate).
Fix
Public exploits 2
- RenukaSelvar/expat_CVE-2024-28757 PoC on GitHub
- saurabh2088/expat_2_1_0_CVE-2024-28757 PoC on GitHub
Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.
Patch, vendor advisory and mitigation references on NVD 6
- http://www.openwall.com/lists/oss-security/2024/03/15/1 Mailing List, Patch, Release Notes
- https://github.com/libexpat/libexpat/issues/839 Exploit, Issue Tracking, Patch
- https://github.com/libexpat/libexpat/pull/842 Issue Tracking, Patch
- http://www.openwall.com/lists/oss-security/2024/03/15/1 Mailing List, Patch, Release Notes
- https://github.com/libexpat/libexpat/issues/839 Exploit, Issue Tracking, Patch
- https://github.com/libexpat/libexpat/pull/842 Issue Tracking, Patch
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.5 · libexpat_project, fedoraproject, netappNVD modified 2026-10-15 01:17
Affected (CPE criteria) 16
cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:*cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*cpe:2.3:a:netapp:oncommand_workflow_automation:-:*:*:*:*:*:*:*cpe:2.3:a:netapp:ontap:9:*:*:*:*:*:*:*cpe:2.3:a:netapp:ontap_tools:10:*:*:*:*:vmware_vsphere:*:*cpe:2.3:a:netapp:windows_host_utilities:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:h610c_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:h610s_firmware:-:*:*:*:*:*:*:*
References 19
- http://www.openwall.com/lists/oss-security/2024/03/15/1 Mailing List, Patch, Release Notes
- https://github.com/libexpat/libexpat/issues/839 Exploit, Issue Tracking, Patch
- https://github.com/libexpat/libexpat/pull/842 Issue Tracking, Patch
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FPLC6WDSRDUYS7F7JWAOVOHFNOUQ43DD/ Mailing List
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LKJ7V5F6LJCEQJXDBWGT27J7NAP3E3N7/ Mailing List
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VK2O34GH43NTHBZBN7G5Y6YKJKPUCTBE/ Mailing List
- https://security.netapp.com/advisory/ntap-20240322-0001/ Third Party Advisory
- http://www.openwall.com/lists/oss-security/2024/03/15/1 Mailing List, Patch, Release Notes
- https://github.com/libexpat/libexpat/issues/839 Exploit, Issue Tracking, Patch
- https://github.com/libexpat/libexpat/pull/842 Issue Tracking, Patch
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FPLC6WDSRDUYS7F7JWAOVOHFNOUQ43DD/ Mailing List
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LKJ7V5F6LJCEQJXDBWGT27J7NAP3E3N7/ Mailing List
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VK2O34GH43NTHBZBN7G5Y6YKJKPUCTBE/ Mailing List
- 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/ Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://cert-portal.siemens.com/productcert/html/ssa-784301.html