CVE-2018-20541: Libxsmm Project Libxsmm

High severity, CVSS 8.8. EPSS: 1.9% chance of exploitation in the next 30 days.

There is a heap-based buffer overflow in libxsmm_sparse_csc_reader at generator_spgemm_csc_reader.c in LIBXSMM 1.10, a different vulnerability than CVE-2018-20542 (which is in a different part of the source code and is seen at different addresses).

Affected products

• Libxsmm Project Libxsmm: version 1.10 only

Published 2018-12-28. Last modified 2026-06-17.