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CVE-2020-21723

16
FAUCET Score

CVE-2020-21723 is a denial-of-service vulnerability affecting oggvideotools 0.9.1, specifically within the StreamSerializer::extractStreams function. An attacker can trigger a segmentation fault and crash the application by enticing a user to open a specially crafted Ogg file. Rated as Medium severity (CVSS 5.5), this vulnerability requires user interaction (UI:R) and local access (AV:L) to exploit, leading to high availability impact (A:H) but no confidentiality or integrity compromise. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
0.9.1CPE matchmatch criteria
cpe:2.3:a:ogg_video_tools_project:ogg_video_tools:0.9.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.42%
Probability of exploitation in next 30 days
EPSS Percentile
34.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0042 is in the 41st percentile among its peer group of 5,758 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / xiaoxiongwang/security/tree/master/oggvideotools
Broken Link
sourceforge.net / p/oggvideotools/bugs/10
ExploitThird Party Advisory