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Vulnerability record · CVE-2017-9051 · published 18 May 2017

CVE-2017-9051: Libav null pointer dereference vulnerability

Libav · Libav

libav before 12.1 is vulnerable to an invalid read of size 1 due to NULL pointer dereferencing in the nsv_read_chunk function in libavformat/nsvdec.c.

9.8 CVSS 3.0 Critical EPSS 1.9% · top 20.9% CWE-476 · NULL pointer dereference
9.8CVSS 3.0 base score, v2 7.5
1.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

libav before 12.1 is vulnerable to an invalid read of size 1 due to NULL pointer dereferencing in the nsv_read_chunk function in libavformat/nsvdec.c.

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

Affected products

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

References

LinkTags
http://www.securityfocus.com/bid/98548
https://bugzilla.libav.org/show_bug.cgi?id=1039 Issue Tracking
https://github.com/libav/libav/commit/fe6eea99efac66839052af547426518efd970b24 Issue TrackingPatchThird Party Advisory
http://www.securityfocus.com/bid/98548
https://bugzilla.libav.org/show_bug.cgi?id=1039 Issue Tracking
https://github.com/libav/libav/commit/fe6eea99efac66839052af547426518efd970b24 Issue TrackingPatchThird Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2017-9051), CISA KEV, FIRST EPSS (scores of 2026-10-09). This page is refreshed as NVD updates the record.