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Vulnerability record · CVE-2017-18247 · published 23 March 2018

CVE-2017-18247: Libav null pointer dereference vulnerability

Libav · Libav

The av_audio_fifo_size function in libavutil/audio_fifo.c in Libav 12.2 allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted media file.

6.5 CVSS 3.0 Medium EPSS 0.99% · top 38.5% CWE-476 · NULL pointer dereference
6.5CVSS 3.0 base score, v2 4.3
0.99%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

The av_audio_fifo_size function in libavutil/audio_fifo.c in Libav 12.2 allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted media file.

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://bugzilla.libav.org/show_bug.cgi?id=1089 Issue TrackingThird Party Advisory
https://bugzilla.libav.org/show_bug.cgi?id=1089 Issue TrackingThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2017-18247), CISA KEV, FIRST EPSS (scores of 2026-10-07). This page is refreshed as NVD updates the record.