Is CVE-2018-5684 actively exploited?

No active exploitation of CVE-2018-5684 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2018-5684 be exploited remotely?

Yes. CVE-2018-5684 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2018-5684?

CVE-2018-5684 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2018-5684

CWE-119Published: January 14, 2018· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

In Libav through 12.2, there is an invalid memcpy call in the ff_mov_read_stsd_entries function of libavformat/mov.c. Remote attackers could leverage this vulnerability to cause a denial of service (segmentation fault) and program failure with a crafted avi file.

NVD Source

Technical Analysis

CVE-2018-5684 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

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 8.8.

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