What is CVE-2019-9720?

CVE-2019-9720 is a medium-severity vulnerability in Libav, classified under Out-of-bounds Write. CVSS score: 6.5/10. Published 2019-09-19.

How severe is CVE-2019-9720?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Buffer overflow in Libav

CVE-2019-9720

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.

Vulnerability class: Buffer Overflow

EPSS: 0.011 (62.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Libav
N/a — versions n/a

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2019-9720?: CVE-2019-9720 is a medium-severity vulnerability in Libav, classified under Out-of-bounds Write. CVSS score: 6.5/10. Published 2019-09-19.
How severe is CVE-2019-9720?: Medium severity. CVSS v3 base score is 6.5 out of 10.