Buffer overflow in Red Hat Enterprise Linux 10
CVE-2026-59691
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 write…
Vulnerability class: Buffer Overflow
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H.
Affected products
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_REDHAT, vdb-entry)
- secalert@redhat.com (x_refsource_REDHAT, issue-tracking)
- secalert@redhat.com
- secalert@redhat.com
Frequently asked questions
- What is CVE-2026-59691?
- CVE-2026-59691 is a high-severity vulnerability in Red Hat Enterprise Linux 10, classified under Out-of-bounds Write. CVSS score: 7.1/10. Published 2026-07-09.
- How severe is CVE-2026-59691?
- High severity. CVSS v3 base score is 7.1 out of 10.