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Vulnerability record · CVE-2015-4486 · published 16 August 2015

CVE-2015-4486: Canonical ubuntu linux memory buffer overflow vulnerability

Canonical · Ubuntu Linux

The decrease_ref_count function in libvpx in Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 allows remote attackers to execute arbitrary code or cause a denial of service (out-of-bounds read) via malformed WebM video data.

10.0 CVSS 2.0 High EPSS 6.6% · top 6.4% CWE-119 · Memory buffer overflow
10.0CVSS 2.0 base score
6.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
32References
17 Jun 2026Last modified by NVD

Description

The decrease_ref_count function in libvpx in Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 allows remote attackers to execute arbitrary code or cause a denial of service (out-of-bounds read) via malformed WebM video data.

AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

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

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00014.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00015.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00021.html
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00016.html
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00025.html
http://lists.opensuse.org/opensuse-updates/2015-08/msg00030.html
http://lists.opensuse.org/opensuse-updates/2015-08/msg00031.html
http://rhn.redhat.com/errata/RHSA-2015-1586.html
http://www.mozilla.org/security/announce/2015/mfsa2015-89.html Vendor Advisory
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html Third Party Advisory
http://www.securitytracker.com/id/1033247
http://www.ubuntu.com/usn/USN-2702-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-2702-2 Third Party Advisory
http://www.ubuntu.com/usn/USN-2702-3
https://bugzilla.mozilla.org/show_bug.cgi?id=1178148 Issue Tracking
https://security.gentoo.org/glsa/201605-06
http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00014.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00015.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00021.html
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00016.html
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00025.html
http://lists.opensuse.org/opensuse-updates/2015-08/msg00030.html
http://lists.opensuse.org/opensuse-updates/2015-08/msg00031.html
http://rhn.redhat.com/errata/RHSA-2015-1586.html
http://www.mozilla.org/security/announce/2015/mfsa2015-89.html Vendor Advisory
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html Third Party Advisory
http://www.securitytracker.com/id/1033247
http://www.ubuntu.com/usn/USN-2702-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-2702-2 Third Party Advisory
http://www.ubuntu.com/usn/USN-2702-3
https://bugzilla.mozilla.org/show_bug.cgi?id=1178148 Issue Tracking
https://security.gentoo.org/glsa/201605-06

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Source: NIST National Vulnerability Database (record CVE-2015-4486), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.