Is CVE-2017-1000172 actively exploited?

No active exploitation of CVE-2017-1000172 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2017-1000172 be exploited remotely?

Yes. CVE-2017-1000172 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2017-1000172?

CVE-2017-1000172 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2017-1000172

CWE-416Published: November 17, 2017· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Creolabs Gravity Version: 1.0 Use-After-Free Possible code execution. An example of a Heap-Use-After-Free after the 'sublexer' pointer has been freed. Line 542 of gravity_lexer.c. 'lexer' is being used to access a variable but 'lexer' has already been freed, creating a Heap Use-After-Free condition.

NVD Source

Technical Analysis

CVE-2017-1000172 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-416): Use-after-free vulnerabilities involve accessing memory after it has been freed, often enabling arbitrary code execution.