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.
Metrics
Affected Vendors & Products
References
History
Mon, 15 Jun 2026 20:30:00 +0000
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ssvc
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Mon, 15 Jun 2026 19:30:00 +0000
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| Description | 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. | |
| Title | Gstreamer1-plugins-bad-free: gstreamer: heap buffer overflow via crafted vnc server rectangle in librfb | |
| First Time appeared |
Redhat
Redhat enterprise Linux |
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| Weaknesses | CWE-122 | |
| CPEs | cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:6 cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
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| Vendors & Products |
Redhat
Redhat enterprise Linux |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-06-15T19:56:22.065Z
Reserved: 2026-06-08T11:07:26.008Z
Link: CVE-2026-52720
Updated: 2026-06-15T19:56:06.041Z
Status : Received
Published: 2026-06-15T20:16:32.580
Modified: 2026-06-15T20:16:32.580
Link: CVE-2026-52720
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OpenCVE Enrichment
No data.