CVE-2019-9720

PoC —

CVSS 3.1

6.5 medium

EPSS

1%p64

Published

Sep 19, 2019 (Sep 19, 2019)

Modified

Jun 17, 2026

Description

A stack-based buffer overflow in the subtitle decoder in Libav 12.3 allows attackers to corrupt the stack via a crafted video file in Matroska format, because srt_to_ass in libavcodec/srtdec.c misuses snprintf.

Vendors: libav
Products: libav
Weakness: CWE-787
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (1.1%)

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