What is CVE-2020-21724?

CVE-2020-21724 is a high-severity vulnerability in Ogg Video Tools Project, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2023-08-22.

How severe is CVE-2020-21724?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Ogg Video Tools Project

CVE-2020-21724

Buffer Overflow vulnerability in ExtractorInformation function in streamExtractor.cpp in oggvideotools 0.9.1 allows remaote attackers to run arbitrary code via opening of crafted ogg file.

Vulnerability class: Buffer Overflow

Published 2023-08-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (31.4th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Ogg Video Tools Project — versions 0.9.1

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

sourceforge.net/p/oggvideotools/bugs/9/ (Exploit, Third Party Advisory)
github.com/xiaoxiongwang/security/tree/master/oggvideotools (Broken Link)

Frequently asked questions

What is CVE-2020-21724?: CVE-2020-21724 is a high-severity vulnerability in Ogg Video Tools Project, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2023-08-22.
How severe is CVE-2020-21724?: High severity. CVSS v3 base score is 7.8 out of 10.