CVE-2026-3084
GStreamer H.266 Codec Parser Integer Underflow Remote Code Execution Vulnerability
GStreamer H.266 Codec Parser Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.
The specific flaw exists within the parsing of picture partitions. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28910.
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
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List
GStreamer H.266 Codec Parser Integer Underflow Remote Code Execution Vulnerability
GStreamer H.266 Codec Parser Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.
The specific flaw exists within the parsing of picture partitions. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28910.
- Record
CVE-2026-3084- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 3.0
- 7.8 High
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-191, CWE-191
- Updated
- 2026-11-02
EUVDEUVD-2026-12127
GStreamer H.266 Codec Parser Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.
The specific flaw exists within the parsing of picture partitions. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28910.
- Record
EUVD-2026-12127- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-hr68-rhh3-j93x
GStreamer H.266 Codec Parser Integer Underflow Remote Code Execution Vulnerability. This...
GStreamer H.266 Codec Parser Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.
The specific flaw exists within the parsing of picture partitions. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28910.
- Record
GHSA-hr68-rhh3-j93x- CVSS 3.0
- 7.8 High
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-191
- Updated
- 2026-11-02
NVD
GStreamer H.266 Codec Parser Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.
The specific flaw exists within the parsing of picture partitions. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28910.
- Record
CVE-2026-3084- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 3.0
- 7.8 High
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-191
- Updated
- 2026-11-02
OSV
GStreamer H.266 Codec Parser Integer Underflow Remote Code Execution Vulnerability
GStreamer H.266 Codec Parser Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.
The specific flaw exists within the parsing of picture partitions. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28910.
- Record
CVE-2026-3084- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-191
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2026-3084
GStreamer H.266 Codec Parser Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the parsing of picture partitions. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28910.
- Record
DEBIAN-CVE-2026-3084- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-3084
GStreamer H.266 Codec Parser Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the parsing of picture partitions. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28910.
- Record
UBUNTU-CVE-2026-3084- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 3.0
- 7.8 High
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
gst-plugins-bad1.0Debian:13 |
before 1.26.2-3+deb13u1, plus listed versions 1.26.2-3 |
1.26.2-3+deb13u1 |
gst-plugins-bad1.0Debian:14 |
before 1.28.1-1, plus listed versions 1.26.10-11.26.10-21.26.2-31.26.3-11.26.4-1 Show 18 moreShow less1.26.5-11.26.5-21.26.6-11.26.6-21.26.6-31.26.6-41.26.6-51.26.7-11.26.7-21.26.8-11.26.9-11.27.1-11.27.2-11.27.50-11.27.90-11.27.90-21.27.90-31.28.0-1 |
1.28.1-1 |
gst-plugins-bad1.0Ubuntu:Pro:14.04:LTS |
All versions, plus listed versions 1.2.0-3ubuntu51.2.1-1ubuntu11.2.1-1ubuntu21.2.2-1ubuntu11.2.2-1ubuntu2 Show 6 moreShow less1.2.2-1ubuntu41.2.3-1ubuntu11.2.3-1ubuntu21.2.4-1~ubuntu11.2.4-1~ubuntu1.11.2.4-1~ubuntu1.1+esm1 |
None known |
gst-plugins-bad1.0Ubuntu:Pro:16.04:LTS |
All versions, plus listed versions 1.6.0-1ubuntu11.6.1-1ubuntu11.6.2-1ubuntu11.7.1-1ubuntu11.7.1-1ubuntu3 Show 11 moreShow less1.7.1-1ubuntu41.7.2-1ubuntu11.7.90-1ubuntu21.7.91-1ubuntu11.8.0-1ubuntu11.8.1-1ubuntu0.11.8.2-1ubuntu0.11.8.2-1ubuntu0.21.8.3-1ubuntu0.21.8.3-1ubuntu0.2+esm11.8.3-1ubuntu0.2+esm2 |
None known |
gst-plugins-bad1.0Ubuntu:Pro:18.04:LTS |
All versions, plus listed versions 1.12.3-1ubuntu11.12.3-1ubuntu21.12.3-2ubuntu11.12.4-2ubuntu11.12.4-2ubuntu2 Show 8 moreShow less1.13.1-1ubuntu11.13.91-1ubuntu11.14.0-1ubuntu11.14.1-1ubuntu1~ubuntu18.04.11.14.4-1ubuntu1~ubuntu18.04.11.14.5-0ubuntu1~18.04.11.14.5-0ubuntu1~18.04.1+esm11.14.5-0ubuntu1~18.04.1+esm2 |
None known |
gst-plugins-bad1.0Ubuntu:Pro:20.04:LTS |
All versions, plus listed versions 1.16.1-1ubuntu11.16.1-1ubuntu31.16.1-1ubuntu41.16.1-1ubuntu51.16.1-1ubuntu6 Show 9 moreShow less1.16.1-1ubuntu81.16.2-1ubuntu11.16.2-1ubuntu21.16.2-2ubuntu11.16.2-2.1ubuntu11.16.3-0ubuntu11.16.3-0ubuntu1.11.16.3-0ubuntu1.1+esm11.16.3-0ubuntu1.1+esm2 |
None known |
gst-plugins-bad1.0Ubuntu:Pro:22.04:LTS |
All versions, plus listed versions 1.18.5-1ubuntu11.18.5-1ubuntu31.20.0-2ubuntu21.20.1-1ubuntu21.20.3-0ubuntu11.20.3-0ubuntu1.11.20.3-0ubuntu1.1+esm21.20.3-0ubuntu1.1+esm3 |
None known |
gst-plugins-bad1.0Ubuntu:Pro:24.04:LTS |
All versions, plus listed versions 1.22.4-1ubuntu11.22.4-1ubuntu21.22.4-1ubuntu41.22.9-2ubuntu11.24.0-1ubuntu3 Show 4 moreShow less1.24.0-1ubuntu41.24.2-1ubuntu41.24.2-1ubuntu4+esm11.24.2-1ubuntu4+esm2 |
None known |
gst-plugins-bad1.0Ubuntu:25.10 |
All versions, plus listed versions 1.26.0-1ubuntu21.26.2-1ubuntu11.26.3-1ubuntu11.26.4-1ubuntu11.26.5-1ubuntu2 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-3084 is a high vulnerability (CVSS 7.8) in Gstreamer, published March 13, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.45%, the 39th percentile. Fixed in gst-plugins-bad1.0 1.26.2-3+deb13u1.
References
zerodayinitiative.com/advisories/ZDI-26-169
gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/496e4f296e658fba7fd40027d3bbe6095633ec91
access.redhat.com/security/cve/CVE-2026-3084
bugzilla.redhat.com/show_bug.cgi?id=2447483
security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-3084.json
nvd.nist.gov/vuln/detail/CVE-2026-3084
Show 7 moreShow less
github.com/advisories/GHSA-hr68-rhh3-j93x
security-tracker.debian.org/tracker/CVE-2026-3084
ubuntu.com/security/CVE-2026-3084
cve.org/CVERecord?id=CVE-2026-3084
gstreamer.freedesktop.org/security/sa-2026-0011.html