CVE-2020-21722

HIGHNVD 7.87.8—Elevated

7.8

Buffer Overflow vulnerability in oggvideotools 0.9.1 allows remote attackers to run arbitrary code via opening of crafted ogg file.

CVSS v3: 7.8
EG Score: 7.8(medium)
EPSS: 46.9%
KEV: Not listed

Published

August 22, 2023

Last Modified

November 21, 2024

References (8)

cve@mitrehttps://github.com/xiaoxiongwang/security/tree/master/oggvideotools#segv-and-heap-use-after-free-detected-in-line-17-of-streamextractorcpp
cve@mitrehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5E3JKOO7D6Y2SW2TQB5JDVG7I4Y3UFGW/
cve@mitrehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LO6NXK73PNR4KAAHLXAGPWJAPP772IOD/
cve@mitrehttps://sourceforge.net/p/oggvideotools/bugs/11/
af854a3a-2127-422b-91ae-364da2661108https://github.com/xiaoxiongwang/security/tree/master/oggvideotools#segv-and-heap-use-after-free-detected-in-line-17-of-streamextractorcpp
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5E3JKOO7D6Y2SW2TQB5JDVG7I4Y3UFGW/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LO6NXK73PNR4KAAHLXAGPWJAPP772IOD/
af854a3a-2127-422b-91ae-364da2661108https://sourceforge.net/p/oggvideotools/bugs/11/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-416Use After Free

Data Freshness Timeline

(refreshed 9× in last 7d / 45× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-18 17:50 UTCEPSS rescore
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2026-06-09 22:47 UTCOSV refresh
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2026-06-04 13:10 UTCEPSS rescore
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2026-06-01 13:50 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
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2026-05-29 13:42 UTCEPSS rescore
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2026-05-26 07:17 UTCEPSS rescore
2026-05-26 07:17 UTCEPSS rescore
2026-05-24 18:58 UTCEG score recompute
2026-05-24 18:58 UTCGHSA enrichment
2026-05-24 16:48 UTCEPSS rescore

Frequently asked(5)

What is CVE-2020-21722?

CVE-2020-21722 is a high vulnerability published on August 22, 2023. Buffer Overflow vulnerability in oggvideotools 0.9.1 allows remote attackers to run arbitrary code via opening of crafted ogg file.

When was CVE-2020-21722 disclosed?

CVE-2020-21722 was first published in the National Vulnerability Database on August 22, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2020-21722 actively exploited?

CVE-2020-21722 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 46.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-21722?

CVE-2020-21722 has a CVSS v3 base score of 7.8 (NVD).

How do I remediate CVE-2020-21722?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-21722, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2020-21722

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CVE-2020-21722

📅 Published

🔄 Last Modified

🔗 References (8)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2020-21722?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (8)

Frequently asked(5)

Related CVEs(same CWE)