CRITICAL

CVE-2018-19857

CVSS v3

9.1

CRITICAL

EPSS Score

3.9 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2018-19857 yet.

Full record on NVD

Description

The CAF demuxer in modules/demux/caf.c in VideoLAN VLC media player 3.0.4 may read memory from an uninitialized pointer when processing magic cookies in CAF files, because a ReadKukiChunk() cast converts a return value to an unsigned int even if that value is negative. This could result in a denial of service and/or a potential infoleak.

Technical details

Published: 2018-12-05

Frequently asked questions

What is CVE-2018-19857?

Is CVE-2018-19857 actively exploited?

Active exploitation of CVE-2018-19857 has not been confirmed. Its EPSS score was 3.9% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-19857?

CVE-2018-19857 has a CVSS v3 base score of 9.1 (CRITICAL severity).

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