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gstreamer1-plugins-bad-free: GStreamer: Heap buffer overflow via crafted VNC server rectangle in librfb

🗓️ 28 Jul 2026 15:20:28Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 4 Views

GStreamer librfb heap overflow via a malicious VNC server rectangle, causing out-of-bounds writes.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
freebsd
FreeBSD		gstreamer1 -- multiple vulnerabilities
12 Jun 202600:00
–freebsd
attackerkb
ATTACKERKB		CVE-2026-52720
15 Jun 202619:15
–attackerkb
nessus
Tenable Nessus		Amazon Linux 2023 : gstreamer1-plugin-openh264, gstreamer1-plugins-bad-free, gstreamer1-plugins-bad-free-devel (ALAS2023-2026-1917)
16 Jul 202600:00
–nessus
nessus
Tenable Nessus		Amazon Linux 2 : gstreamer-plugins-bad-free, --advisory ALAS2-2026-3791 (ALAS-2026-3791)
8 Jul 202600:00
–nessus
nessus
Tenable Nessus		Alibaba Cloud Linux 3 : 0205: gstreamer1-plugins-bad-free (ALINUX3-SA-2026:0205)
16 Jul 202600:00
–nessus
nessus
Tenable Nessus		AlmaLinux 10 : gstreamer1-plugins-bad-free (ALSA-2026:36749)
9 Jul 202600:00
–nessus
nessus
Tenable Nessus		AlmaLinux 9 : gstreamer1-plugins-bad-free (ALSA-2026:36834)
10 Jul 202600:00
–nessus
nessus
Tenable Nessus		AlmaLinux 8 : gstreamer1-plugins-bad-free (ALSA-2026:37130)
9 Jul 202600:00
–nessus
nessus
Tenable Nessus		FreeBSD : gstreamer1 -- multiple vulnerabilities (4e82a0e6-6801-42c6-8fb6-91b6b275a9e1)
29 Jun 202600:00
–nessus
nessus
Tenable Nessus		MiracleLinux 8 : gstreamer1-plugins-bad-free-1.16.1-8.el8_10 (AXSA:2026-1243:01)
10 Jul 202600:00
–nessus
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.2aarch64gstreamer1-plugins-bad-free1.18.4-9.el9_2.3gstreamer1-plugins-bad-free-1.18.4-9.el9_2.3.aarch64.rpm
Red Hat Enterprise Linux9.2i686gstreamer1-plugins-bad-free1.18.4-9.el9_2.3gstreamer1-plugins-bad-free-1.18.4-9.el9_2.3.i686.rpm
Red Hat Enterprise Linux9.2ppc64legstreamer1-plugins-bad-free1.18.4-9.el9_2.3gstreamer1-plugins-bad-free-1.18.4-9.el9_2.3.ppc64le.rpm
Red Hat Enterprise Linux9.2s390xgstreamer1-plugins-bad-free1.18.4-9.el9_2.3gstreamer1-plugins-bad-free-1.18.4-9.el9_2.3.s390x.rpm
Red Hat Enterprise Linux9.2x86_64gstreamer1-plugins-bad-free1.18.4-9.el9_2.3gstreamer1-plugins-bad-free-1.18.4-9.el9_2.3.x86_64.rpm
Red Hat Enterprise Linux9.2aarch64gstreamer1-plugins-bad-free-debuginfo1.18.4-9.el9_2.3gstreamer1-plugins-bad-free-debuginfo-1.18.4-9.el9_2.3.aarch64.rpm
Red Hat Enterprise Linux9.2i686gstreamer1-plugins-bad-free-debuginfo1.18.4-9.el9_2.3gstreamer1-plugins-bad-free-debuginfo-1.18.4-9.el9_2.3.i686.rpm
Red Hat Enterprise Linux9.2ppc64legstreamer1-plugins-bad-free-debuginfo1.18.4-9.el9_2.3gstreamer1-plugins-bad-free-debuginfo-1.18.4-9.el9_2.3.ppc64le.rpm
Red Hat Enterprise Linux9.2s390xgstreamer1-plugins-bad-free-debuginfo1.18.4-9.el9_2.3gstreamer1-plugins-bad-free-debuginfo-1.18.4-9.el9_2.3.s390x.rpm
Red Hat Enterprise Linux9.2x86_64gstreamer1-plugins-bad-free-debuginfo1.18.4-9.el9_2.3gstreamer1-plugins-bad-free-debuginfo-1.18.4-9.el9_2.3.x86_64.rpm
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30 Jul 2026 08:23Current
7.7High risk
Vulners AI Score7.7
CVSS 3.18.8
EPSS0.00638
SSVC
CWE-122
gstreamerremote framebuffer flawheap overflowremote code executioncrafted server rectangle
4