PT-2025-48315 · Libexpat+2 · Libexpat+2

Published 2025-11-28 · Updated 2026-03-10 · CVE-2025-66382

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions libexpat versions through 2.7.3

Description A specially crafted file, approximately 2 MiB in size, can cause significant processing delays, potentially lasting for dozens of seconds.

Recommendations Update to a version later than 2.7.3.

Fix

DoS

Weakness Enumeration

CWE-407

Related Identifiers

AZL-71054

AZL-72814

BDU:2026-03628

CVE-2025-66382

ECHO-CB91-04AE-BA17

OPENSUSE-SU-2026:10087-1

Affected Products

Debian

Red Os

Libexpat

References · 24

• https://security-tracker.debian.org/tracker/CVE-2025-66382 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-71054 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-66382 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:10087-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-66382 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-66382 · Security Note
• https://osv.dev/vulnerability/AZL-72814 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-66382 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-66382 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-03628 · Security Note
• https://ubuntu.com/security/CVE-2025-66382 · Vendor Advisory
• https://github.com/libexpat/libexpat/issues/1076 · Note
• https://redos.red-soft.ru/support/secure/uyazvimosti/support/secure/uyazvimosti-red-os-8-0/uyazvimost-expat-cve-2025-66382-8.0 · Note
• https://t.me/cveNotify/144207 · Telegram Post
• https://t.me/msrcreports/3219 · Telegram Post