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Fencer Vulns
high 7.8

CVE-2020-21724 json

Buffer Overflow vulnerability in ExtractorInformation function in streamExtractor.cpp in oggvideotools 0.9.1 allows remaote attackers to ru…

published 2023-08-22 3 y ago modified 2026-06-17 4 mo ago also EUVD-2020-14492

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 34%
public exploits
0
none known

Summary

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.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-21724 updated cvss 8.1

oggvideotools: buffer overflow vulnerability in ExtractorInformation()

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • sourceforge.net https://sourceforge.net/p/oggvideotools/bugs/9/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.