CVE-2026-52720
CVE-2026-52720 · Gstreamer1-plugins-bad-free: gstreamer: heap buffer overflow via crafted vnc server rectangle in librfb
This page contains facts from public vulnerability sources. Check the original advisory before updating.
This page shows selected source facts. See the linked advisories for the complete description and affected versions.
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.
CVSS 8.8 · High · EPSS 0.6% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
red hat enterprise linux 10
- Versions
- ≥ 0:1.26.7-2.el10_2.4: Not affected (rpm)
No fix published
red hat enterprise linux 10.0 extended update support
- Versions
- ≥ 0:1.24.11-3.el10_0.4: Not affected (rpm)
No fix published
red hat enterprise linux 7 extended lifecycle support
- Versions
- ≥ 0:1.10.4-6.el7_9: Not affected (rpm)
No fix published
red hat enterprise linux 7 extended lifecycle support
- Versions
- ≥ 0:0.10.23-25.el7_9: Not affected (rpm)
No fix published
red hat enterprise linux 8
- Versions
- ≥ 0:1.16.1-8.el8_10: Not affected (rpm)
No fix published
red hat enterprise linux 8.4 advanced mission critical update support
- Versions
- ≥ 0:1.16.1-4.el8_4.2: Not affected (rpm)
No fix published
red hat enterprise linux 8.4 extended update support long-life add-on
- Versions
- ≥ 0:1.16.1-4.el8_4.2: Not affected (rpm)
No fix published
red hat enterprise linux 8.6 advanced mission critical update support
- Versions
- ≥ 0:1.16.1-4.el8_6.2: Not affected (rpm)
No fix published
red hat enterprise linux 8.6 extended update support long-life add-on
- Versions
- ≥ 0:1.16.1-4.el8_6.2: Not affected (rpm)
No fix published
red hat enterprise linux 8.8 telecommunications update service
- Versions
- ≥ 0:1.16.1-4.el8_8.2: Not affected (rpm)
No fix published
red hat enterprise linux 8.8 update services for sap solutions
- Versions
- ≥ 0:1.16.1-4.el8_8.2: Not affected (rpm)
No fix published
red hat enterprise linux 9
- Versions
- ≥ 0:1.22.12-7.el9_8.1: Not affected (rpm)
No fix published
red hat enterprise linux 9.2 update services for sap solutions
- Versions
- ≥ 0:1.18.4-9.el9_2.3: Not affected (rpm)
No fix published
red hat enterprise linux 9.4 update services for sap solutions
- Versions
- ≥ 0:1.22.1-6.el9_4.4: Not affected (rpm)
No fix published
red hat enterprise linux 9.6 extended update support
- Versions
- ≥ 0:1.22.12-5.el9_6.4: Not affected (rpm)
No fix published
red hat enterprise linux 6
No fix published
gst-plugins-bad1.0 Debian:12
- Versions
- 1.22.0-4
- 1.22.0-4+deb12u1
- 1.22.0-4+deb12u2
- 1.22.0-4+deb12u3
- 1.22.0-4+deb12u4
- 1.22.0-4+deb12u5
- 1.22.0-4+deb12u6
- 1.22.0-4+deb12u7
- Affected ranges
- ECOSYSTEM: < 1.22.0-4+deb12u8
Update to 1.22.0-4+deb12u8
gst-plugins-bad1.0 Debian:13
- Versions
- 1.26.2-3
- 1.26.2-3+deb13u1
- 1.26.2-3+deb13u2
- Affected ranges
- ECOSYSTEM: < 1.26.2-3+deb13u3
Update to 1.26.2-3+deb13u3
gst-plugins-bad1.0 Debian:14
- Versions
- 1.26.10-1
- 1.26.10-2
- 1.26.2-3
- 1.26.3-1
- 1.26.4-1
- 1.26.5-1
- 1.26.5-2
- 1.26.6-1
- 1.26.6-2
- 1.26.6-3
- 1.26.6-4
- 1.26.6-5
- 1.26.7-1
- 1.26.7-2
- 1.26.8-1
- 1.26.9-1
- 1.27.1-1
- 1.27.2-1
- 1.27.50-1
- 1.27.90-1
- 1.27.90-2
- 1.27.90-3
- 1.28.0-1
- 1.28.1-1
- 1.28.1-2
- 1.28.1-3
- 1.28.2-1
- 1.28.2-2
- 1.28.3-1
- 1.28.4-1
- Affected ranges
- ECOSYSTEM: < 1.28.5-1
Update to 1.28.5-1
gst-plugins-bad1.0 Ubuntu:Pro:14.04:LTS
- Versions
- 1.2.0-3ubuntu5
- 1.2.1-1ubuntu1
- 1.2.1-1ubuntu2
- 1.2.2-1ubuntu1
- 1.2.2-1ubuntu2
- 1.2.2-1ubuntu4
- 1.2.3-1ubuntu1
- 1.2.3-1ubuntu2
- 1.2.4-1~ubuntu1
- 1.2.4-1~ubuntu1.1
- 1.2.4-1~ubuntu1.1+esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
gst-plugins-bad1.0 Ubuntu:Pro:16.04:LTS
- Versions
- 1.6.0-1ubuntu1
- 1.6.1-1ubuntu1
- 1.6.2-1ubuntu1
- 1.7.1-1ubuntu1
- 1.7.1-1ubuntu3
- 1.7.1-1ubuntu4
- 1.7.2-1ubuntu1
- 1.7.90-1ubuntu2
- 1.7.91-1ubuntu1
- 1.8.0-1ubuntu1
- 1.8.1-1ubuntu0.1
- 1.8.2-1ubuntu0.1
- 1.8.2-1ubuntu0.2
- 1.8.3-1ubuntu0.2
- 1.8.3-1ubuntu0.2+esm1
- 1.8.3-1ubuntu0.2+esm2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
gst-plugins-bad1.0 Ubuntu:Pro:18.04:LTS
- Versions
- 1.12.3-1ubuntu1
- 1.12.3-1ubuntu2
- 1.12.3-2ubuntu1
- 1.12.4-2ubuntu1
- 1.12.4-2ubuntu2
- 1.13.1-1ubuntu1
- 1.13.91-1ubuntu1
- 1.14.0-1ubuntu1
- 1.14.1-1ubuntu1~ubuntu18.04.1
- 1.14.4-1ubuntu1~ubuntu18.04.1
- 1.14.5-0ubuntu1~18.04.1
- 1.14.5-0ubuntu1~18.04.1+esm1
- 1.14.5-0ubuntu1~18.04.1+esm2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
gst-plugins-bad1.0 Ubuntu:Pro:20.04:LTS
- Versions
- 1.16.1-1ubuntu1
- 1.16.1-1ubuntu3
- 1.16.1-1ubuntu4
- 1.16.1-1ubuntu5
- 1.16.1-1ubuntu6
- 1.16.1-1ubuntu8
- 1.16.2-1ubuntu1
- 1.16.2-1ubuntu2
- 1.16.2-2ubuntu1
- 1.16.2-2.1ubuntu1
- 1.16.3-0ubuntu1
- 1.16.3-0ubuntu1.1
- 1.16.3-0ubuntu1.1+esm1
- 1.16.3-0ubuntu1.1+esm2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
gst-plugins-bad1.0 Ubuntu:Pro:22.04:LTS
- Versions
- 1.18.5-1ubuntu1
- 1.18.5-1ubuntu3
- 1.20.0-2ubuntu2
- 1.20.1-1ubuntu2
- 1.20.3-0ubuntu1
- 1.20.3-0ubuntu1.1
- 1.20.3-0ubuntu1.1+esm2
- 1.20.3-0ubuntu1.1+esm3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
Original sources
- https://access.redhat.com/errata/RHSA-2026:36749
- https://access.redhat.com/errata/RHSA-2026:36834
- https://access.redhat.com/errata/RHSA-2026:37130
- https://access.redhat.com/errata/RHSA-2026:47069
- https://access.redhat.com/errata/RHSA-2026:47070
- https://access.redhat.com/errata/RHSA-2026:47071
- https://access.redhat.com/errata/RHSA-2026:47075
- https://access.redhat.com/errata/RHSA-2026:47076
- https://access.redhat.com/errata/RHSA-2026:47176
- https://access.redhat.com/errata/RHSA-2026:47717
- https://access.redhat.com/errata/RHSA-2026:47718
- https://access.redhat.com/errata/RHSA-2026:49517
- https://access.redhat.com/security/cve/CVE-2026-52720
- https://bugzilla.redhat.com/show_bug.cgi?id=2486731
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/work_items/5105
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52720.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-52720