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CVE-2026-52720

Gstreamer1-plugins-bad-free: gstreamer: heap buffer overflow via crafted vnc server rectangle in librfb PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Red Hat / Red Hat Enterprise Linux 10unaffected 0:1.26.7-2.el10_2.4 before *
Red Hat / Red Hat Enterprise Linux 10.0 Extended Update Supportunaffected 0:1.24.11-3.el10_0.4 before *
Red Hat / Red Hat Enterprise Linux 7 Extended Lifecycle Supportunaffected 0:1.10.4-6.el7_9 before *
Red Hat / Red Hat Enterprise Linux 7 Extended Lifecycle Supportunaffected 0:0.10.23-25.el7_9 before *
Red Hat / Red Hat Enterprise Linux 8unaffected 0:1.16.1-8.el8_10 before *
Red Hat / Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportunaffected 0:1.16.1-4.el8_4.2 before *
Red Hat / Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-Onunaffected 0:1.16.1-4.el8_4.2 before *
Red Hat / Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportunaffected 0:1.16.1-4.el8_6.2 before *
Red Hat / Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-Onunaffected 0:1.16.1-4.el8_6.2 before *
Red Hat / Red Hat Enterprise Linux 8.8 Telecommunications Update Serviceunaffected 0:1.16.1-4.el8_8.2 before *
Red Hat / Red Hat Enterprise Linux 8.8 Update Services for SAP Solutionsunaffected 0:1.16.1-4.el8_8.2 before *
Red Hat / Red Hat Enterprise Linux 9unaffected 0:1.22.12-7.el9_8.1 before *
Red Hat / Red Hat Enterprise Linux 9.2 Update Services for SAP Solutionsunaffected 0:1.18.4-9.el9_2.3 before *
Red Hat / Red Hat Enterprise Linux 9.4 Update Services for SAP Solutionsunaffected 0:1.22.1-6.el9_4.4 before *
Red Hat / Red Hat Enterprise Linux 9.6 Extended Update Supportunaffected 0:1.22.12-5.el9_6.4 before *
Red Hat / Red Hat Enterprise Linux 6unknown

CWE

CWE-122

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

redhat-SADP

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.