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THREAT OPSThreat News › [NVD] CVE-2026-52720 (HIGH 8.8) — 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 attack

[NVD] CVE-2026-52720 (HIGH 8.8) — 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 attack

lownvdPublished 2026-06-15

CVE-2026-52720 CVSS: 8.8 HIGH Published: 2026-06-15T20:16:32.580

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 use

Indicators of compromise

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-52720