CVE-2015-4511

Mozilla: Buffer overflow while decoding WebM video (MFSA 2015-105)

Loading…

Severity

Important

Red Hat Product Security

6.8

CVSS 2.0

Review impact separately from score.

Published · September 22, 2015

Updated · November 21, 2025

Description

Heap-based buffer overflow in the nestegg_track_codec_data function in Mozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3 allows remote attackers to execute arbitrary code via a crafted header in a WebM video.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 2.0 · 6.8
AV:N/AC:M/Au:N/C:P/I:P/A:P

CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')