CVE-2017-2781

Name: CVE-2017-2781
Creator: NVD / NIST
Published: 2017-06-22T21:29:00.247+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.34%

Last modified Jun 17, 2026

CVE-2017-2781 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 2.34% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

2.34%

81.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Matrixssl	Matrixssl	3.8.7b

References

http://www.securityfocus.com/bid/99249Third Party Advisory, VDB Entry
https://talosintelligence.com/vulnerability_reports/TALOS-2017-0277Exploit, Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/99249Third Party Advisory, VDB Entry
https://talosintelligence.com/vulnerability_reports/TALOS-2017-0277Exploit, Third Party Advisory, VDB Entry

Timeline

Published: Jun 22, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-2781?

How severe is CVE-2017-2781?

CVE-2017-2781 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.34% probability of exploitation in the next 30 days.

How do I fix CVE-2017-2781?

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-2017-2781?

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

Scan your code now

Source: NVD / NIST