CVE-2025-66382

State: Published
Severity: 2.9 Low
Published: Nov 28, 2025
Updated: Oct 15, 2026
Reserved: Nov 28, 2025

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.

Scores

CVSS	Score	Vector	Source
3.1	2.9 Low	CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L	mitre

Weaknesses

CWE-407 Inefficient Algorithmic Complexity

Affected Products

Product	Versions
libexpatlibexpat project	2.7.5 and earlierAffected

References

https://github.com/libexpat/libexpat/issues/1076
http://www.openwall.com/lists/oss-security/2025/12/02/1
https://cert-portal.siemens.com/productcert/html/ssa-082556.html
https://cert-portal.siemens.com/productcert/html/ssa-253495.html

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