CVE-2018-20542

Name: CVE-2018-20542
Creator: NVD / NIST
Published: 2018-12-28T16:29:04.723+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.91%

Last modified Jun 17, 2026

CVE-2018-20542 is a vulnerability of currently unknown severity. There is a heap-based buffer-overflow at generator_spgemm_csc_reader.c (function libxsmm_sparse_csc_reader) in LIBXSMM 1.10, a different vulnerability than CVE-2018-20541 (which is in a different part of the source code and is seen at a different address).. EPSS estimates a 1.91% chance of exploitation in the next 30 days.

Description

There is a heap-based buffer-overflow at generator_spgemm_csc_reader.c (function libxsmm_sparse_csc_reader) in LIBXSMM 1.10, a different vulnerability than CVE-2018-20541 (which is in a different part of the source code and is seen at a different address).

Metrics

EPSS Probability

1.91%

77.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Libxsmm Project	Libxsmm	1.10

References

https://bugzilla.redhat.com/show_bug.cgi?id=1652633Exploit, Issue Tracking, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1652635Exploit, Issue Tracking, Third Party Advisory
https://github.com/hfp/libxsmm/commit/151481489192e6d1997f8bde52c5c425ea41741dPatch, Third Party Advisory
https://github.com/hfp/libxsmm/issues/287Exploit, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1652633Exploit, Issue Tracking, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1652635Exploit, Issue Tracking, Third Party Advisory
https://github.com/hfp/libxsmm/commit/151481489192e6d1997f8bde52c5c425ea41741dPatch, Third Party Advisory
https://github.com/hfp/libxsmm/issues/287Exploit, Patch, Third Party Advisory

Timeline

Published: Dec 28, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-20542?

How severe is CVE-2018-20542?

Severity scoring for CVE-2018-20542 is pending analysis. The EPSS model estimates a 1.91% probability of exploitation in the next 30 days.

How do I fix CVE-2018-20542?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-20542?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST