CVE-2026-52720
Fixed in a distro release EPSS <1%CVSS 8.8
A heap buffer overflow vulnerability was found in GStreamer's librfb (RFB/VNC client). The rectangle bounds check incorrectly validates area rather than individual dimensions, allowing a malicious VNC server to send a rectangle that extends beyond the framebuffer. A remote attacker could set up a malicious VNC server and trick a user into connecting, resulting in an out-of-bounds heap write that could lead to code execution or a crash.
Products: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 7 Extended Lifecycle Support, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On, Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On, Red Hat Enterprise Linux 8.8 Telecommunications Update Service, Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.6 Extended Update Support, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux 10 | gstreamer1-plugins-bad-free | 1.26.7-2.el10_2.4 |
| AlmaLinux 10 | gstreamer1-plugins-bad-free-devel | 1.26.7-2.el10_2.4 |
| AlmaLinux 10 | gstreamer1-plugins-bad-free-libs | 1.26.7-2.el10_2.4 |
| AlmaLinux 8 | gstreamer1-plugins-bad-free | 1.16.1-8.el8_10 |
| AlmaLinux 8 | gstreamer1-plugins-bad-free-devel | 1.16.1-8.el8_10 |
| AlmaLinux 9 | gstreamer1-plugins-bad-free | 1.22.12-7.el9_8.1 |
| AlmaLinux 9 | gstreamer1-plugins-bad-free-devel | 1.22.12-7.el9_8.1 |
| AlmaLinux 9 | gstreamer1-plugins-bad-free-libs | 1.22.12-7.el9_8.1 |
| Debian 12 | gst-plugins-bad1.0 | 1.22.0-4+deb12u8 |
| Debian 13 | gst-plugins-bad1.0 | 1.26.2-3+deb13u3 |
| Debian 14 | gst-plugins-bad1.0 | 1.28.5-1 |
| Red Hat Enterprise Linux 10.2 | gstreamer1-plugins-bad-free | 0:1.26.7-2.el10_2.4 |
| Red Hat Enterprise Linux 10.2 | gstreamer1-plugins-bad-free-debuginfo | 0:1.26.7-2.el10_2.4 |
| Red Hat Enterprise Linux 10.2 | gstreamer1-plugins-bad-free-debugsource | 0:1.26.7-2.el10_2.4 |
| Red Hat Enterprise Linux 10.2 | gstreamer1-plugins-bad-free-devel | 0:1.26.7-2.el10_2.4 |
| Red Hat Enterprise Linux 10.2 | gstreamer1-plugins-bad-free-libs | 0:1.26.7-2.el10_2.4 |
| Red Hat Enterprise Linux 10.2 | gstreamer1-plugins-bad-free-libs-debuginfo | 0:1.26.7-2.el10_2.4 |
| Red Hat Enterprise Linux 8 | gstreamer1-plugins-bad-free | 0:1.16.1-8.el8_10 |
| Red Hat Enterprise Linux 8 | gstreamer1-plugins-bad-free-debuginfo | 0:1.16.1-8.el8_10 |
| Red Hat Enterprise Linux 8 | gstreamer1-plugins-bad-free-debugsource | 0:1.16.1-8.el8_10 |
| Red Hat Enterprise Linux 8 | gstreamer1-plugins-bad-free-devel | 0:1.16.1-8.el8_10 |
| Red Hat Enterprise Linux 9 | gstreamer1-plugins-bad-free | 0:1.22.12-7.el9_8.1 |
| Red Hat Enterprise Linux 9 | gstreamer1-plugins-bad-free-debuginfo | 0:1.22.12-7.el9_8.1 |
| Red Hat Enterprise Linux 9 | gstreamer1-plugins-bad-free-debugsource | 0:1.22.12-7.el9_8.1 |
| Red Hat Enterprise Linux 9 | gstreamer1-plugins-bad-free-devel | 0:1.22.12-7.el9_8.1 |
| Red Hat Enterprise Linux 9 | gstreamer1-plugins-bad-free-libs | 0:1.22.12-7.el9_8.1 |
| Red Hat Enterprise Linux 9 | gstreamer1-plugins-bad-free-libs-debuginfo | 0:1.22.12-7.el9_8.1 |
| Red Hat Enterprise Linux eus 10.0 | gstreamer1-plugins-bad-free | 0:1.24.11-3.el10_0.4 |
| Red Hat Enterprise Linux eus 10.0 | gstreamer1-plugins-bad-free-debuginfo | 0:1.24.11-3.el10_0.4 |
| Red Hat Enterprise Linux eus 10.0 | gstreamer1-plugins-bad-free-debugsource | 0:1.24.11-3.el10_0.4 |
| Red Hat Enterprise Linux eus 10.0 | gstreamer1-plugins-bad-free-devel | 0:1.24.11-3.el10_0.4 |
| Red Hat Enterprise Linux eus 10.0 | gstreamer1-plugins-bad-free-libs | 0:1.24.11-3.el10_0.4 |
| Red Hat Enterprise Linux eus 10.0 | gstreamer1-plugins-bad-free-libs-debuginfo | 0:1.24.11-3.el10_0.4 |
| Red Hat rhel aus 8.4 | gstreamer1-plugins-bad-free | 0:1.16.1-4.el8_4.2 |
| Red Hat rhel aus 8.4 | gstreamer1-plugins-bad-free-debuginfo | 0:1.16.1-4.el8_4.2 |
| Red Hat rhel aus 8.4 | gstreamer1-plugins-bad-free-debugsource | 0:1.16.1-4.el8_4.2 |
| Red Hat rhel aus 8.6 | gstreamer1-plugins-bad-free | 0:1.16.1-4.el8_6.2 |
| Red Hat rhel aus 8.6 | gstreamer1-plugins-bad-free-debuginfo | 0:1.16.1-4.el8_6.2 |
| Red Hat rhel aus 8.6 | gstreamer1-plugins-bad-free-debugsource | 0:1.16.1-4.el8_6.2 |
| Red Hat rhel e4s 8.8 | gstreamer1-plugins-bad-free | 0:1.16.1-4.el8_8.2 |
| Red Hat rhel e4s 8.8 | gstreamer1-plugins-bad-free-debuginfo | 0:1.16.1-4.el8_8.2 |
| Red Hat rhel e4s 8.8 | gstreamer1-plugins-bad-free-debugsource | 0:1.16.1-4.el8_8.2 |
| Red Hat rhel e4s 9.2 | gstreamer1-plugins-bad-free | 0:1.18.4-9.el9_2.3 |
| Red Hat rhel e4s 9.2 | gstreamer1-plugins-bad-free-debuginfo | 0:1.18.4-9.el9_2.3 |
| Red Hat rhel e4s 9.2 | gstreamer1-plugins-bad-free-debugsource | 0:1.18.4-9.el9_2.3 |
| Red Hat rhel e4s 9.4 | gstreamer1-plugins-bad-free | 0:1.22.1-6.el9_4.4 |
| Red Hat rhel e4s 9.4 | gstreamer1-plugins-bad-free-debuginfo | 0:1.22.1-6.el9_4.4 |
| Red Hat rhel e4s 9.4 | gstreamer1-plugins-bad-free-debugsource | 0:1.22.1-6.el9_4.4 |
| Red Hat rhel els 7 | gstreamer-plugins-bad-free | 0:0.10.23-25.el7_9 |
| Red Hat rhel els 7 | gstreamer-plugins-bad-free-debuginfo | 0:0.10.23-25.el7_9 |
| Red Hat rhel els 7 | gstreamer-plugins-bad-free-devel | 0:0.10.23-25.el7_9 |
| Red Hat rhel els 7 | gstreamer-plugins-bad-free-devel-docs | 0:0.10.23-25.el7_9 |
| Red Hat rhel els 7 | gstreamer1-plugins-bad-free | 0:1.10.4-6.el7_9 |
| Red Hat rhel els 7 | gstreamer1-plugins-bad-free-debuginfo | 0:1.10.4-6.el7_9 |
| Red Hat rhel els 7 | gstreamer1-plugins-bad-free-devel | 0:1.10.4-6.el7_9 |
| Red Hat rhel els 7 | gstreamer1-plugins-bad-free-gtk | 0:1.10.4-6.el7_9 |
| Red Hat rhel eus 9.6 | gstreamer1-plugins-bad-free | 0:1.22.12-5.el9_6.4 |
| Red Hat rhel eus 9.6 | gstreamer1-plugins-bad-free-debuginfo | 0:1.22.12-5.el9_6.4 |
| Red Hat rhel eus 9.6 | gstreamer1-plugins-bad-free-debugsource | 0:1.22.12-5.el9_6.4 |
| Red Hat rhel eus 9.6 | gstreamer1-plugins-bad-free-devel | 0:1.22.12-5.el9_6.4 |
| Red Hat rhel eus 9.6 | gstreamer1-plugins-bad-free-libs | 0:1.22.12-5.el9_6.4 |
| Red Hat rhel eus 9.6 | gstreamer1-plugins-bad-free-libs-debuginfo | 0:1.22.12-5.el9_6.4 |
| Red Hat rhel eus long life 8.4 | gstreamer1-plugins-bad-free | 0:1.16.1-4.el8_4.2 |
| Red Hat rhel eus long life 8.4 | gstreamer1-plugins-bad-free-debuginfo | 0:1.16.1-4.el8_4.2 |
| Red Hat rhel eus long life 8.4 | gstreamer1-plugins-bad-free-debugsource | 0:1.16.1-4.el8_4.2 |
| Red Hat rhel eus long life 8.6 | gstreamer1-plugins-bad-free | 0:1.16.1-4.el8_6.2 |
| Red Hat rhel eus long life 8.6 | gstreamer1-plugins-bad-free-debuginfo | 0:1.16.1-4.el8_6.2 |
| Red Hat rhel eus long life 8.6 | gstreamer1-plugins-bad-free-debugsource | 0:1.16.1-4.el8_6.2 |
| Red Hat rhel tus 8.8 | gstreamer1-plugins-bad-free | 0:1.16.1-4.el8_8.2 |
| Red Hat rhel tus 8.8 | gstreamer1-plugins-bad-free-debuginfo | 0:1.16.1-4.el8_8.2 |
| Red Hat rhel tus 8.8 | gstreamer1-plugins-bad-free-debugsource | 0:1.16.1-4.el8_8.2 |
| Rocky Linux 10 | gstreamer1-plugins-bad-free | 0:1.26.7-2.el10_2.4 |
| Rocky Linux 8 | gstreamer1-plugins-bad-free | 0:1.16.1-8.el8_10 |
| Rocky Linux 9 | gstreamer1-plugins-bad-free | 0:1.22.12-7.el9_8.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | gstreamer-plugins-bad | 1.20.1-150400.3.29.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | gstreamer-plugins-bad | 1.20.1-150400.3.29.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | gstreamer-plugins-bad | 1.22.0-150500.3.34.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | gstreamer-plugins-bad | 1.22.0-150500.3.34.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | gstreamer-plugins-bad | 1.24.0-150600.4.9.1 |
| SUSE Linux Enterprise Module for Desktop Applications 15 SP7 | gstreamer-plugins-bad | 1.24.0-150600.4.9.1 |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | gstreamer-plugins-bad | 1.24.0-150600.4.9.1 |
| SUSE Linux Enterprise Server 12 SP5-LTSS | gstreamer-plugins-bad | 1.8.3-18.21.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | gstreamer-plugins-bad | 1.20.1-150400.3.29.1 |
| SUSE Linux Enterprise Server 15 SP5-LTSS | gstreamer-plugins-bad | 1.22.0-150500.3.34.1 |
| SUSE Linux Enterprise Server 15 SP6-LTSS | gstreamer-plugins-bad | 1.24.0-150600.4.9.1 |
| SUSE Linux Enterprise Server 16.0 | gstreamer-plugins-bad | 1.26.7-160000.3.1 |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | gstreamer-plugins-bad | 1.8.3-18.21.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | gstreamer-plugins-bad | 1.20.1-150400.3.29.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | gstreamer-plugins-bad | 1.22.0-150500.3.34.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | gstreamer-plugins-bad | 1.24.0-150600.4.9.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | gstreamer-plugins-bad | 1.26.7-160000.3.1 |
| SUSE Linux Micro 6.2 | gstreamer-plugins-bad | 1.26.7-160000.3.1 |
| Ubuntu 25.10 | gst-plugins-bad1.0 | no fix |
| Ubuntu 26.04 LTS | gst-plugins-bad1.0 | no fix |
| Ubuntu 26.10 | gst-plugins-bad1.0 | no fix |
| Ubuntu Pro 14.04 LTS | gst-plugins-bad1.0 | no fix |
| Ubuntu Pro 16.04 LTS | gst-plugins-bad1.0 | no fix |
| Ubuntu Pro 18.04 LTS | gst-plugins-bad1.0 | no fix |
| Ubuntu Pro 20.04 LTS | gst-plugins-bad1.0 | no fix |
| Ubuntu Pro 22.04 LTS | gst-plugins-bad1.0 | no fix |
| Ubuntu Pro 24.04 LTS | gst-plugins-bad1.0 | no fix |
| openSUSE Leap 16.0 | gstreamer-plugins-bad | 1.26.7-160000.3.1 |
| openSUSE Tumbleweed | gstreamer-plugins-bad | 1.28.4+24-1.1 |