Is CVE-2017-2781 actively exploited?

No active exploitation of CVE-2017-2781 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2017-2781 be exploited remotely?

Yes. CVE-2017-2781 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2017-2781?

CVE-2017-2781 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2017-2781

CRITICAL

CVE-2017-2781

CWE-787Published: June 22, 2017· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2017-2781 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.