Out-of-bounds Write Affecting gstreamer package, versions [0,]
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CONAN-GSTREAMER-17906463
- published9 Jul 2026
- disclosed8 Jul 2026
- creditUnknown
Introduced: 8 Jul 2026
CVE-2026-59691 (opens in a new tab)How to fix?
There is no fixed version for gstreamer.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Write in the rfbsrc process when connecting to a malicious RFB/VNC server that advertises a 16bpp framebuffer and sends Hextile-encoded updates. An attacker can cause a process crash or potentially corrupt memory by exploiting a type mismatch that results in 32-bit pixel values being written into a buffer allocated for 16-bit pixels. This is only exploitable if a user actively connects a GStreamer pipeline to a malicious VNC server.
Workaround
This vulnerability can be mitigated by avoiding connections to untrusted or unknown VNC servers, removing the librfb plugin shared object from the GStreamer plugins directory if not required, or applying network-level controls to restrict outbound VNC connections to trusted servers only.