Out-of-bounds Read in Xmlsoft Libxml2

CVE-2025-32415

In libxml2 before 2.13.8 and 2.14.x before 2.14.2, xmlSchemaIDCFillNodeTables in xmlschemas.c has a heap-based buffer under-read. To exploit this, a crafted XML document must be validated against an XML schema with certain identity constraints, or a crafted XML schema must be used.

EPSS: 0.006 (45.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 2.9 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-32415?
CVE-2025-32415 is a low-severity vulnerability in Xmlsoft Libxml2, classified under Improper Validation of Specified Quantity in Input. CVSS score: 2.9/10. Published 2025-04-17.
How severe is CVE-2025-32415?
Low severity. CVSS v3 base score is 2.9 out of 10.
Is CVE-2025-32415 known to be exploited?
7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.