CVE-2026-59691
CVE-2026-59691 · Gstreamer1-plugins-bad-free: gstreamer: rfbsrc/librfb hextile heap out-of-bounds write with 16bpp framebuffer
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 rfbsrc plugin. When a client connects to a malicious RFB/VNC server that advertises a 16bpp framebuffer and sends Hextile-encoded updates, the Hextile background fill path writes 32-bit pixel values into a buffer allocated for 16-bit pixels. This type mismatch causes an out-of-bounds heap write that can lead to denial of service (process crash) and potential memory corruption.
CVSS 7.1 · High · EPSS 0.3% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
red hat enterprise linux 10
- Versions
- ≥ 0:1.26.7-2.el10_2.6: Not affected (rpm)
No fix published
red hat enterprise linux 10.0 extended update support
- Versions
- ≥ 0:1.24.11-3.el10_0.6: Not affected (rpm)
No fix published
red hat enterprise linux 7 extended lifecycle support
- Versions
- ≥ 0:1.10.4-7.el7_9: Not affected (rpm)
No fix published
red hat enterprise linux 7 extended lifecycle support
- Versions
- ≥ 0:0.10.23-26.el7_9: Not affected (rpm)
No fix published
red hat enterprise linux 8
- Versions
- ≥ 0:1.16.1-9.el8_10.1: Not affected (rpm)
No fix published
red hat enterprise linux 8.4 advanced mission critical update support
- Versions
- ≥ 0:1.16.1-4.el8_4.4: 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_4.4: Not affected (rpm)
No fix published
red hat enterprise linux 8.6 advanced mission critical update support
- Versions
- ≥ 0:1.16.1-4.el8_6.4: 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_6.4: Not affected (rpm)
No fix published
red hat enterprise linux 8.8 telecommunications update service
- Versions
- ≥ 0:1.16.1-4.el8_8.4: Not affected (rpm)
No fix published
red hat enterprise linux 8.8 update services for sap solutions
- Versions
- ≥ 0:1.16.1-4.el8_8.4: Not affected (rpm)
No fix published
red hat enterprise linux 9
- Versions
- ≥ 0:1.22.12-7.el9_8.3: Not affected (rpm)
No fix published
red hat enterprise linux 9.2 update services for sap solutions
- Versions
- ≥ 0:1.18.4-9.el9_2.5: Not affected (rpm)
No fix published
red hat enterprise linux 9.4 update services for sap solutions
- Versions
- ≥ 0:1.22.1-6.el9_4.6: Not affected (rpm)
No fix published
red hat enterprise linux 9.6 extended update support
- Versions
- ≥ 0:1.22.12-5.el9_6.6: 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
- 1.26.10-1
- 1.26.10-2
- 1.26.2-3
- 1.26.2-3+deb13u1
- 1.26.2-3+deb13u2
- 1.26.2-3+deb13u3
- 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
- 1.28.5-1
- 1.28.5-2
- 1.28.6-1
- 1.28.7-1
- 1.28.7-2
- 1.28.8-1
- 1.29.1-1
- 1.29.2-1
- 1.29.2-2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
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-2026:47179
- https://access.redhat.com/errata/RHSA-2026:47180
- https://access.redhat.com/errata/RHSA-2026:47731
- https://access.redhat.com/errata/RHSA-2026:54658
- https://access.redhat.com/errata/RHSA-2026:54659
- https://access.redhat.com/errata/RHSA-2026:54660
- https://access.redhat.com/errata/RHSA-2026:54664
- https://access.redhat.com/errata/RHSA-2026:54665
- https://access.redhat.com/errata/RHSA-2026:54752
- https://access.redhat.com/errata/RHSA-2026:56658
- https://access.redhat.com/errata/RHSA-2026:56772
- https://access.redhat.com/errata/RHSA-2026:62532
- https://access.redhat.com/security/cve/CVE-2026-59691
- https://bugzilla.redhat.com/show_bug.cgi?id=2497343
- https://gitlab.freedesktop.org/gstreamer/gstreamer-security/-/merge_requests/100
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/work_items/5173
- https://nvd.nist.gov/vuln/detail/CVE-2026-59691