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CVE-2021-3498
GStreamer before 1.18.4 might cause heap corruption when parsing certain malformed Matroska files.
High7.8EPSS 1.8%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
GStreamer before 1.18.4 might cause heap corruption when parsing certain malformed Matroska files.
Timeline
ID reserved
By redhat
- 6 days later
· 6 days later
Published
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 1.8% · top 22% of all CVEs (7 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
gstreamer-plugins-good
- affected gstreamer-plugins-good 1.18.4
References (5)
- https://bugzilla.redhat.com/show_bug.cgi?id=1945342 (opens in a new tab)x_refsource_MISCx_transferred
- https://gstreamer.freedesktop.org/security/sa-2021-0003.html (opens in a new tab)x_refsource_MISCx_transferred
- DSA-4900 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- http://packetstormsecurity.com/files/162952/Gstreamer-Matroska-Demuxing-Use-After-Free.html (opens in a new tab)x_refsource_MISCx_transferred
- GLSA-202208-31 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2021-3498)Record last updated .