CVE-2020-21723
A Segmentation Fault issue discovered StreamSerializer::extractStreams function in...
A Segmentation Fault issue discovered StreamSerializer::extractStreams function in streamSerializer.cpp in oggvideotools 0.9.1 allows remote attackers to cause a denial of service (crash) via opening of crafted ogg file.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
A Segmentation Fault issue discovered StreamSerializer::extractStreams function in streamSerializer.cpp in oggvideotools 0.9.1 allows remote attackers to cause a denial of service (crash) via opening of crafted ogg file.
- Record
CVE-2020-21723- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
CVE List No score
A Segmentation Fault issue discovered StreamSerializer::extractStreams function in streamSerializer.cpp in oggvideotools 0.9.1 allows remote attackers to cause a denial of service (crash) via opening of crafted ogg file.
- Record
CVE-2020-21723- Weakness
- CWE-787
- Updated
- 2026-11-02
EUVDEUVD-2020-14491 No score
A Segmentation Fault issue discovered StreamSerializer::extractStreams function in streamSerializer.cpp in oggvideotools 0.9.1 allows remote attackers to cause a denial of service (crash) via opening of crafted ogg file.
- Record
EUVD-2020-14491- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-3cvg-j39v-pqwx
A Segmentation Fault issue discovered StreamSerializer::extractStreams function in...
A Segmentation Fault issue discovered StreamSerializer::extractStreams function in streamSerializer.cpp in oggvideotools 0.9.1 allows remote attackers to cause a denial of service (crash) via opening of crafted ogg file.
- Record
GHSA-3cvg-j39v-pqwx- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
OSV
A Segmentation Fault issue discovered StreamSerializer::extractStreams function in streamSerializer.cpp in oggvideotools 0.9.1 allows remote attackers to cause a denial of service (crash) via opening of crafted ogg file.
- Record
CVE-2020-21723- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2020-21723
A Segmentation Fault issue discovered StreamSerializer::extractStreams function in streamSerializer.cpp in oggvideotools 0.9.1 allows remote attackers to cause a denial of service (crash) via opening of crafted ogg file.
- Record
DEBIAN-CVE-2020-21723- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2020-21723
A Segmentation Fault issue discovered StreamSerializer::extractStreams function in streamSerializer.cpp in oggvideotools 0.9.1 allows remote attackers to cause a denial of service (crash) via opening of crafted ogg file.
- Record
UBUNTU-CVE-2020-21723- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
oggvideotoolsDebian:12 |
All versions, plus listed versions 0.9.1-60.9.1-70.9.1-7.1 |
None known |
oggvideotoolsDebian:13 |
All versions, plus listed versions 0.9.1-70.9.1-7.1 |
None known |
oggvideotoolsDebian:14 |
All versions, plus listed versions 0.9.1-70.9.1-7.1 |
None known |
oggvideotoolsUbuntu:16.04:LTS |
All versions, plus listed versions 0.8a-40.8a-7 |
None known |
oggvideotoolsUbuntu:18.04:LTS |
All versions, plus listed versions 0.9.1-4 |
None known |
oggvideotoolsUbuntu:20.04:LTS |
All versions, plus listed versions 0.9.1-50.9.1-5build1 |
None known |
oggvideotoolsUbuntu:22.04:LTS |
All versions, plus listed versions 0.9.1-5.10.9.1-6 |
None known |
oggvideotoolsUbuntu:24.04:LTS |
All versions, plus listed versions 0.9.1-6 |
None known |
oggvideotoolsUbuntu:25.10 |
All versions, plus listed versions 0.9.1-7 |
None known |
oggvideotoolsUbuntu:26.10 |
All versions, plus listed versions 0.9.1-7.1 |
None known |
oggvideotoolsUbuntu:26.04:LTS |
All versions, plus listed versions 0.9.1-70.9.1-7build10.9.1-7.1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-21723 is a medium vulnerability (CVSS 5.5) in Ogg Video Tools Project Video Tools, published August 22, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.48%, the 42nd percentile. No source names a fixed version.