gst-plugins-bad1.0: A heap buffer overflow vulnerability was found in GStreamer's librfb (RFB/VNC client)
CVE-2026-52720 is fixed in 10 products on 1 platform, first by DEBIAN-CVE-2026-52720, released June 15, 2026. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| gst-plugins-bad1.0 · Debian 12.15 (bookworm) | 1.22.0-4+deb12u8 | DEBIAN-CVE-2026-52720 | Jun 15, 2026 |
| gst-plugins-bad1.0 · Debian 13.5 (trixie) | 1.26.2-3+deb13u3 | DEBIAN-CVE-2026-52720 | Jun 15, 2026 |
| gst-plugins-bad1.0 · Debian 14 | 1.28.5-1 | DEBIAN-CVE-2026-52720 | Jun 15, 2026 |
| gstreamer-plugins-bad · opensuse-leap 16.0 | 1.26.7-160000.3.1 | OPENSUSE-SU-2026:21370-1 | Jul 18, 2026 |
| gstreamer-plugins-bad · sles 15.6 | 1.24.0-150600.4.9.1 | SUSE-SU-2026:3058-1 | Jul 15, 2026 |
| gstreamer-plugins-bad · sles 15.7 | 1.24.0-150600.4.9.1 | SUSE-SU-2026:3058-1 | Jul 15, 2026 |
| gstreamer-plugins-bad · sles 16.0 | 1.26.7-160000.3.1 | SUSE-SU-2026:22817-1 | Jul 18, 2026 |
| gstreamer1-plugin-openh264 · amzn 2023 | 1.24.10-1.amzn2023.0.6 | ALAS2023-2026-1917 | Jul 6, 2026 |
| gstreamer1-plugin-openh264-debuginfo · amzn 2023 | 1.24.10-1.amzn2023.0.6 | ALAS2023-2026-1917 | Jul 6, 2026 |
| gstreamer1-plugins-bad-free · RHEL 10 | 1.24.11-3.el10_0.4 | RHSA-2026:47717 | Jul 9, 2026 |
| gstreamer1-plugins-bad-free · RHEL 8 | 0:1.16.1-8.el8_10 | RHSA-2026:37130 | Jul 10, 2026 |
| gstreamer1-plugins-bad-free · RHEL 9 | 0:1.22.12-7.el9_8.1 | RHSA-2026:36834 | Jul 9, 2026 |
| gstreamer1-plugins-bad-free · almalinux 10 | 1.26.7-2.el10_2.4 | ALSA-2026:36749 | Jul 8, 2026 |
| gstreamer1-plugins-bad-free · almalinux 8 | 1.16.1-8.el8_10 | ALSA-2026:37130 | Jul 9, 2026 |
| gstreamer1-plugins-bad-free · almalinux 9 | 1.22.12-7.el9_8.1 | ALSA-2026:36834 | Jul 8, 2026 |
| gstreamer1-plugins-bad-free · amzn 2023 | 1.24.10-1.amzn2023.0.6 | ALAS2023-2026-1917 | Jul 6, 2026 |
| gstreamer1-plugins-bad-free · ol 10 | 0:1.26.7-2.el10_2.4 | ELSA-2026-36749 | Jul 16, 2026 |
| gstreamer1-plugins-bad-free · ol 8 | 0:1.16.1-8.0.1.el8_10 | ELSA-2026-37130 | Jul 9, 2026 |
| gstreamer1-plugins-bad-free · ol 9 | 0:1.22.12-7.el9_8.1 | ELSA-2026-36834 | Jul 8, 2026 |
| gstreamer1-plugins-bad-free · rocky 10 | 0:1.26.7-2.el10_2.4 | RLSA-2026:36749 | Jul 10, 2026 |
| gstreamer1-plugins-bad-free · rocky 8 | 0:1.16.1-8.el8_10 | RLSA-2026:37130 | Jul 10, 2026 |
| gstreamer1-plugins-bad-free · rocky 9 | 0:1.22.12-7.el9_8.1 | RLSA-2026:36834 | Jul 10, 2026 |
| gstreamer1-plugins-bad-free-debuginfo · amzn 2023 | 1.24.10-1.amzn2023.0.6 | ALAS2023-2026-1917 | Jul 6, 2026 |
| gstreamer1-plugins-bad-free-debugsource · amzn 2023 | 1.24.10-1.amzn2023.0.6 | ALAS2023-2026-1917 | Jul 6, 2026 |
| gstreamer1-plugins-bad-free-devel · RHEL 8 | 0:1.16.1-8.el8_10 | RHSA-2026:37130 | Jul 10, 2026 |
| gstreamer1-plugins-bad-free-devel · RHEL 9 | 0:1.22.12-7.el9_8.1 | RHSA-2026:36834 | Jul 9, 2026 |
| gstreamer1-plugins-bad-free-devel · almalinux 10 | 1.26.7-2.el10_2.4 | ALSA-2026:36749 | Jul 8, 2026 |
| gstreamer1-plugins-bad-free-devel · almalinux 8 | 1.16.1-8.el8_10 | ALSA-2026:37130 | Jul 9, 2026 |
| gstreamer1-plugins-bad-free-devel · almalinux 9 | 1.22.12-7.el9_8.1 | ALSA-2026:36834 | Jul 8, 2026 |
| gstreamer1-plugins-bad-free-devel · amzn 2023 | 1.24.10-1.amzn2023.0.6 | ALAS2023-2026-1917 | Jul 6, 2026 |
| gstreamer1-plugins-bad-free-devel · ol 10 | 0:1.26.7-2.el10_2.4 | ELSA-2026-36749 | Jul 16, 2026 |
| gstreamer1-plugins-bad-free-devel · ol 8 | 0:1.16.1-8.0.1.el8_10 | ELSA-2026-37130 | Jul 9, 2026 |
| gstreamer1-plugins-bad-free-devel · ol 9 | 0:1.22.12-7.el9_8.1 | ELSA-2026-36834 | Jul 8, 2026 |
| gstreamer1-plugins-bad-free-libs · RHEL 9 | 0:1.22.12-7.el9_8.1 | RHSA-2026:36834 | Jul 9, 2026 |
| gstreamer1-plugins-bad-free-libs · almalinux 10 | 1.26.7-2.el10_2.4 | ALSA-2026:36749 | Jul 8, 2026 |
| gstreamer1-plugins-bad-free-libs · almalinux 9 | 1.22.12-7.el9_8.1 | ALSA-2026:36834 | Jul 8, 2026 |
| gstreamer1-plugins-bad-free-libs · amzn 2023 | 1.24.10-1.amzn2023.0.6 | ALAS2023-2026-1917 | Jul 6, 2026 |
| gstreamer1-plugins-bad-free-libs · ol 10 | 0:1.26.7-2.el10_2.4 | ELSA-2026-36749 | Jul 16, 2026 |
| gstreamer1-plugins-bad-free-libs · ol 9 | 0:1.22.12-7.el9_8.1 | ELSA-2026-36834 | Jul 8, 2026 |
| gstreamer1-plugins-bad-free-libs-debuginfo · amzn 2023 | 1.24.10-1.amzn2023.0.6 | ALAS2023-2026-1917 | Jul 6, 2026 |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.