What is CVE-2025-66382?

CVE-2025-66382 is a security advisory published by Microsoft Security Response Center (MSRC) with Low severity. 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.

Which CVE IDs does CVE-2025-66382 cover?

CVE-2025-66382 covers the following CVE IDs: CVE-2025-66382. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2025-66382?

CVE-2025-66382 has a CVSS v3 base score of 2.9, published by Microsoft Security Response Center (MSRC).

CVE-2025-66382LowCVSS 2.9

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.

Vendor

Microsoft Security Response Center (MSRC)

Published

May 31, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2025-66382 →