SB2026090244 - Red Hat Enterprise Linux 7 Extended Lifecycle Support update for gstreamer-plugins-bad-free

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Main Vulnerability Database SB2026090244

SB2026090244 - Red Hat Enterprise Linux 7 Extended Lifecycle Support update for gstreamer-plugins-bad-free

Published: September 2, 2026

Security Bulletin ID SB2026090244
CSH Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Heap-based buffer overflow (CVE-ID: CVE-2026-59691)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to heap-based buffer overflow in rfbsrc element RFB decoder when decoding crafted framebuffer updates from a VNC server. A remote attacker can operate a crafted VNC server and send framebuffer updates with specific pixel formats and encoding types to execute arbitrary code.

This may also cause a crash, denial of service, or data corruption in the client application.


Remediation

Install update from vendor's website.

References