SUSE-SU-2026:2427-1: important: Security update for LibVNCServer

[SLE-UPDATES]

# Security update for LibVNCServer

Announcement ID: SUSE-SU-2026:2427-1  
Release Date: 2026-06-17T09:50:23Z  
Rating: important  
References:

  * bsc#1266459

  
Cross-References:

  * CVE-2026-44988

  
CVSS scores:

  * CVE-2026-44988 ( SUSE ):  9.2
    CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-44988 ( SUSE ):  8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-44988 ( NVD ):  8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

  
Affected Products:

  * openSUSE Leap 15.6
  * SUSE Linux Enterprise Desktop 15 SP7
  * SUSE Linux Enterprise Real Time 15 SP7
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7
  * SUSE Linux Enterprise Workstation Extension 15 SP7
  * SUSE Package Hub 15 15-SP7

  
  
An update that solves one vulnerability can now be installed.

## Description:

This update for LibVNCServer fixes the following issues:

  * CVE-2026-44988: Fixed missing validation of rectangle width in tight
    gradient decoding can lead to server-triggered out-of-bounds write
    (bsc#1266459).

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * openSUSE Leap 15.6  
    zypper in -t patch SUSE-2026-2427=1

  * SUSE Package Hub 15 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP7-2026-2427=1

  * SUSE Linux Enterprise Workstation Extension 15 SP7  
    zypper in -t patch SUSE-SLE-Product-WE-15-SP7-2026-2427=1

## Package List:

  * openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)
    * LibVNCServer-devel-0.9.14-150600.3.9.1
    * libvncserver1-debuginfo-0.9.14-150600.3.9.1
    * libvncclient1-0.9.14-150600.3.9.1
    * libvncserver1-0.9.14-150600.3.9.1
    * libvncclient1-debuginfo-0.9.14-150600.3.9.1
    * LibVNCServer-debugsource-0.9.14-150600.3.9.1
  * SUSE Package Hub 15 15-SP7 (aarch64 ppc64le s390x)
    * LibVNCServer-devel-0.9.14-150600.3.9.1
    * libvncserver1-debuginfo-0.9.14-150600.3.9.1
    * libvncclient1-0.9.14-150600.3.9.1
    * libvncserver1-0.9.14-150600.3.9.1
    * libvncclient1-debuginfo-0.9.14-150600.3.9.1
    * LibVNCServer-debugsource-0.9.14-150600.3.9.1
  * SUSE Linux Enterprise Workstation Extension 15 SP7 (x86_64)
    * libvncserver1-debuginfo-0.9.14-150600.3.9.1
    * libvncclient1-0.9.14-150600.3.9.1
    * libvncserver1-0.9.14-150600.3.9.1
    * libvncclient1-debuginfo-0.9.14-150600.3.9.1
    * LibVNCServer-debugsource-0.9.14-150600.3.9.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-44988.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1266459

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