CVE-2024-28757
Advisory lineage Upstream: 0 Downstream: 15
Modified
Published: 10 Mar 2024, 00:00
Last modified:04 Nov 2025, 22:06
Vulnerability Summary
Overall Risk (default)
medium
40/100 CVSS Score
7.5 HIGH
v3.1 (cve.org)
EPSS Score
1.2% LOW
1% probability +0.31%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected
Timeline
10 Mar 2024, 00:00
Published
Vulnerability first disclosed
04 Nov 2025, 22:06
Last Modified
Vulnerability information updated
Description
libexpat through 2.6.1 allows an XML Entity Expansion attack when there is isolated use of external parsers (created via XML_ExternalEntityParserCreate).
CVSS Metrics
- v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Trends
Current EPSS score: 1.20%• Percentile: 79%
Techniques & Countermeasures
- CWE-776•Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')
The product uses XML documents and allows their structure to be defined with a Document Type Definition (DTD), but it does not properly control the number of recursive definitions of entities.
Affected Systems
- fedoraproject•fedora
38 | 39 | 40
- libexpat_project•libexpat
< 2.6.2
- netapp•active_iq_unified_manager
na
- netapp•h300s_firmware
na
- netapp•h410c_firmware
na
- netapp•h410s_firmware
na
- netapp•h500s_firmware
na
- netapp•h610c_firmware
na
- netapp•h610s_firmware
na
- netapp•h700s_firmware
na
- netapp•oncommand_workflow_automation
na
- netapp•ontap
9
- netapp•ontap_tools
10
- netapp•windows_host_utilities
na
References (10)
- https://github.com/libexpat/libexpat/pull/842
- https://github.com/libexpat/libexpat/issues/839
- 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://security.netapp.com/advisory/ntap-20240322-0001/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VK2O34GH43NTHBZBN7G5Y6YKJKPUCTBE/
- http://www.openwall.com/lists/oss-security/2024/03/15/1
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VK2O34GH43NTHBZBN7G5Y6YKJKPUCTBE/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FPLC6WDSRDUYS7F7JWAOVOHFNOUQ43DD/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LKJ7V5F6LJCEQJXDBWGT27J7NAP3E3N7/