CVE-2026-2920

EUVD-2026-12113
GStreamer ASF Demuxer Heap-based Buffer Overflow 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 processing of stream headers within ASF files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28843.
Classic Buffer Overflow
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.8 HIGH
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 52%
Affected Products (NVD)
VendorProductVersion
gstreamergstreamer
𝑥
< 1.28.1
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
Red HatRed Hat Enterprise Linux 10
0:1.24.11-3.el10_1 ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux 10
0:1.26.7-2.el10_2 ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux 10
0:1.24.11-2.el10_1 ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux 10
0:1.26.7-2.el10_2 ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux 10
0:1.24.11-2.el10_1 ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux 10
0:1.26.7-2.el10_2 ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux 10
0:1.24.11-2.el10_1 ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux 10
0:1.26.7-2.el10_2 ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux 10.0 Extended Update Support
0:1.24.11-3.el10_0 ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux 10.0 Extended Update Support
0:1.24.11-1.el10_0.1 ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux 10.0 Extended Update Support
0:1.24.11-1.el10_0.2 ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux 10.0 Extended Update Support
0:1.24.11-1.el10_0.1 ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux 8
0:1.16.1-6.el8_10 ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux 8
0:1.16.1-6.el8_10 ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux 8
0:1.16.1-6.el8_10 ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux 9
0:1.22.12-5.el9_7 ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux 9
0:1.22.12-7.el9_8 ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux 9
0:1.22.12-5.el9_7 ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux 9
0:1.22.12-8.el9_8 ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux 9
0:1.22.12-5.el9_7 ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux 9
0:1.22.12-7.el9_8 ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux 9
0:1.22.12-4.el9_7 ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux 9
0:1.22.12-6.el9_8 ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux 9.6 Extended Update Support
0:1.22.12-5.el9_6 ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux 9.6 Extended Update Support
0:1.22.12-5.el9_6 ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux 9.6 Extended Update Support
0:1.22.12-5.el9_6 ≤
𝑥
< *
ADP
Red HatRed Hat Enterprise Linux 9.6 Extended Update Support
0:1.22.12-4.el9_6 ≤
𝑥
< *
ADP
Debian logo
Debian Releases
Debian Product
Codename
gst-plugins-ugly1.0
bookworm
1.22.0-2+deb12u2
fixed
bookworm (security)
1.22.0-2+deb12u2
fixed
bullseye
vulnerable
bullseye (security)
1.18.4-2+deb11u2
fixed
forky
1.28.5-1
fixed
sid
1.28.5-1
fixed
trixie
1.26.3-4+deb13u1
fixed
trixie (security)
1.26.3-4+deb13u1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
gst-plugins-ugly1.0
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
needs-triage
questing
ignored
resolute
needs-triage
xenial
ignored
Red Hat logo
Red Hat Enterprise Linux Releases
Red Hat Product
Release
gstreamer1-plugins-bad-free
RHEL 8
0:1.16.1-6.el8_10
fixed
RHEL 9
0:1.22.12-5.el9_7
fixed
gstreamer1-plugins-bad-free-devel
RHEL 8
0:1.16.1-6.el8_10
fixed
RHEL 9
0:1.22.12-5.el9_7
fixed
gstreamer1-plugins-bad-free-libs
RHEL 9
0:1.22.12-5.el9_7
fixed
gstreamer1-plugins-base
RHEL 8
0:1.16.1-6.el8_10
fixed
RHEL 9
0:1.22.12-5.el9_7
fixed
gstreamer1-plugins-base-devel
RHEL 8
0:1.16.1-6.el8_10
fixed
RHEL 9
0:1.22.12-5.el9_7
fixed
gstreamer1-plugins-base-tools
RHEL 9
0:1.22.12-5.el9_7
fixed
gstreamer1-plugins-good
RHEL 8
0:1.16.1-6.el8_10
fixed
RHEL 9
0:1.22.12-5.el9_7
fixed
gstreamer1-plugins-good-gtk
RHEL 8
0:1.16.1-6.el8_10
fixed
RHEL 9
0:1.22.12-5.el9_7
fixed
gstreamer1-plugins-ugly-free
RHEL 9
0:1.22.12-4.el9_7
fixed
Common Weakness Enumeration
References
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/37d7991168a223d0810fd1f4493ec6a8b6a510d3
https://www.zerodayinitiative.com/advisories/ZDI-26-164/
https://access.redhat.com/errata/RHSA-2026:19024
https://access.redhat.com/errata/RHSA-2026:19180
https://access.redhat.com/errata/RHSA-2026:6259
https://access.redhat.com/errata/RHSA-2026:6300
https://access.redhat.com/errata/RHSA-2026:6750
https://access.redhat.com/errata/RHSA-2026:8854
https://access.redhat.com/errata/RHSA-2026:8862
https://access.redhat.com/security/cve/CVE-2026-2920
https://bugzilla.redhat.com/show_bug.cgi?id=2447490
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2920.json