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Vulnerability record · CVE-2018-18829 · published 30 October 2018

CVE-2018-18829: Libav null pointer dereference vulnerability

Libav · Libav

There exists a NULL pointer dereference in ff_vc1_parse_frame_header_adv in vc1.c in Libav 12.3, which allows attackers to cause a denial-of-service through a crafted aac file.

6.5 CVSS 3.0 Medium EPSS 0.86% · top 42.8% CWE-476 · NULL pointer dereference
6.5CVSS 3.0 base score, v2 4.3
0.86%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

There exists a NULL pointer dereference in ff_vc1_parse_frame_header_adv in vc1.c in Libav 12.3, which allows attackers to cause a denial-of-service through a crafted aac 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=1136 ExploitIssue TrackingThird Party Advisory
https://bugzilla.libav.org/show_bug.cgi?id=1136 ExploitIssue TrackingThird Party Advisory

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Related vulnerabilities

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

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Source: NIST National Vulnerability Database (record CVE-2018-18829), CISA KEV, FIRST EPSS (scores of 2026-10-07). This page is refreshed as NVD updates the record.