Vulnerability Description
libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing.
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Libexpat Project | Libexpat | < 2.7.2 |
Related Weaknesses (CWE)
References
- https://github.com/libexpat/libexpat/blob/676a4c531ec768732fac215da9730b5f50fbd2Product
- https://github.com/libexpat/libexpat/blob/R_2_7_2/expat/ChangesProduct
- https://github.com/libexpat/libexpat/issues/1018ExploitIssue Tracking
- https://github.com/libexpat/libexpat/pull/1034Issue Tracking
- https://issues.oss-fuzz.com/issues/439133977ExploitIssue Tracking
- http://www.openwall.com/lists/oss-security/2025/09/16/2
- http://www.openwall.com/lists/oss-security/2026/05/01/5
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-089022.html
FAQ
What is CVE-2025-59375?
CVE-2025-59375 is a vulnerability with a CVSS score of 7.5 (HIGH). libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing.
How severe is CVE-2025-59375?
CVE-2025-59375 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-59375?
Check the references section above for vendor advisories and patch information. Affected products include: Libexpat Project Libexpat.