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Vulnerability record · CVE-2016-6886 · published 13 January 2017

CVE-2016-6886: Matrixssl vulnerability

MMatrixssl · Matrixssl

The pstm_reverse function in MatrixSSL before 3.8.4 allows remote attackers to cause a denial of service (invalid memory read and crash) via a (1) zero value or (2) the key's modulus for the secret key during RSA key exchange.

7.5 CVSS 3.0 High EPSS 1.7% · top 23.7% CWE-320 · CWE-320
7.5CVSS 3.0 base score, v2 5.0
1.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

The pstm_reverse function in MatrixSSL before 3.8.4 allows remote attackers to cause a denial of service (invalid memory read and crash) via a (1) zero value or (2) the key's modulus for the secret key during RSA key exchange.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.matrixssl.org/blog/releases/matrixssl_3_8_4 PatchVendor Advisory
http://www.securityfocus.com/bid/92604
https://blog.fuzzing-project.org/51-Fun-with-Bignums-Crashing-MatrixSSL-and-more.html Third Party Advisory
http://www.matrixssl.org/blog/releases/matrixssl_3_8_4 PatchVendor Advisory
http://www.securityfocus.com/bid/92604
https://blog.fuzzing-project.org/51-Fun-with-Bignums-Crashing-MatrixSSL-and-more.html Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2016-6886), CISA KEV, FIRST EPSS (scores of 2026-10-01). This page is refreshed as NVD updates the record.