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Vulnerability record · CVE-2017-2781 · published 22 June 2017

CVE-2017-2781: Matrixssl out-of-bounds write vulnerability

MMatrixssl · Matrixssl

An exploitable heap buffer overflow vulnerability exists in the X509 certificate parsing functionality of InsideSecure MatrixSSL 3.8.7b. A specially crafted x509 certificate can cause a buffer overflow on the heap resulting in remote code execution. To trigger this vulnerability, a specially crafted x509 certificate must be presented to the vulnerable client or server application when initiating secure connection.

9.8 CVSS 3.1 Critical EPSS 2.3% · top 17.0% CWE-787 · Out-of-bounds write
9.8CVSS 3.1 base score, v2 7.5
2.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

An exploitable heap buffer overflow vulnerability exists in the X509 certificate parsing functionality of InsideSecure MatrixSSL 3.8.7b. A specially crafted x509 certificate can cause a buffer overflow on the heap resulting in remote code execution. To trigger this vulnerability, a specially crafted x509 certificate must be presented to the vulnerable client or server application when initiating secure connection.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

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

References

LinkTags
http://www.securityfocus.com/bid/99249 Third Party AdvisoryVDB Entry
https://talosintelligence.com/vulnerability_reports/TALOS-2017-0277 ExploitThird Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/99249 Third Party AdvisoryVDB Entry
https://talosintelligence.com/vulnerability_reports/TALOS-2017-0277 ExploitThird Party AdvisoryVDB Entry

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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-2017-2781), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.