CVE-2025-59375

HIGH
Published Sep 15, 2025 Modified May 12, 2026 CWE-770

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.

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CVSS v3.1 Score

7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-770 CWE-770

Affected Products

Vendor Product
libexpat_project libexpat

References

Frequently Asked Questions

What is CVE-2025-59375? +
libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing. It has a CVSS v3.1 base score of 7.5 (HIGH).
How severe is CVE-2025-59375? +
CVE-2025-59375 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2025-59375? +
CVE-2025-59375 affects products from libexpat_project, specifically: libexpat. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2025-59375? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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