CVE-2025-66382
MEDIUM EPSS 8.1%
Published Nov 28, 20257mo ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Published Nov 28, 2025 7mo ago
Last Modified Jun 17, 2026 2w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
8.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-407
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| libexpat_project | libexpat | * | ≤2.7.3 |
References 4
- openwall.com http://www.openwall.com/lists/oss-security/2025/12/02/1
- cert-portal.siemens.com https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- cert-portal.siemens.com https://cert-portal.siemens.com/productcert/html/ssa-253495.html
- github.com https://github.com/libexpat/libexpat/issues/1076
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.