CVE-2025-66382

medium

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.

References

https://github.com/libexpat/libexpat/issues/1076

https://cert-portal.siemens.com/productcert/html/ssa-253495.html

https://cert-portal.siemens.com/productcert/html/ssa-082556.html

http://www.openwall.com/lists/oss-security/2025/12/02/1

Details

Source: Mitre, NVD

Published: 2025-11-28

Updated: 2026-06-02

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

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

Severity: Medium

EPSS

EPSS: 0.00013