Is CVE-2017-6953 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2017-6953, but active exploitation has not been confirmed.

Can CVE-2017-6953 be exploited remotely?

No. CVE-2017-6953 requires local access to exploit.

What is the CVSS score of CVE-2017-6953?

CVE-2017-6953 has a CVSS score of 7.8 (HIGH).

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HIGHPOC

CVE-2017-6953

CWE-119Published: May 8, 2017· Updated: Jun 17, 2026

7.8

CVSS v3.1

Official Description

Gemalto SmartDiag Diagnosis Tool v2.5 has a stack-based Buffer Overflow with SEH Overwrite via long "Register a new card" input fields. There may be a risk of local code execution with untrusted input to SmartDiag.exe or SymDiag.exe.

NVD Source

Technical Analysis

CVE-2017-6953 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

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 7.8.

A proof-of-concept (PoC) exploit exists for CVE-2017-6953. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

From a weakness classification perspective (CWE-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.