CVE-2025-66382

LOW
Published Nov 28, 2025 Modified May 12, 2026 CWE-407

Description

In libexpat through 2.7.3, a crafted file with an approximate size of 2 MiB can lead to dozens of seconds of processing time.

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CVSS v3.1 Score

2.9
LOW
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Weakness Type (CWE)

CWE-407 CWE-407

Affected Products

Vendor Product
libexpat_project libexpat

References

Frequently Asked Questions

What is CVE-2025-66382? +
In libexpat through 2.7.3, a crafted file with an approximate size of 2 MiB can lead to dozens of seconds of processing time. It has a CVSS v3.1 base score of 2.9 (LOW).
How severe is CVE-2025-66382? +
CVE-2025-66382 has a CVSS v3.1 score of 2.9 out of 10, rated LOW. This is a low-severity vulnerability with limited impact.
What products are affected by CVE-2025-66382? +
CVE-2025-66382 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-2025-66382? +
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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