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openSUSE LibVNCServer Important Buffer Overflow Fix SUSE-SU-2026-2427-1

opensuse
Calendar Grey June 17, 2026
Dist Opensuse Esm H88
Important update for openSUSE addresses CVE-2026-44988 in LibVNCServer to prevent potential server-triggered issues.
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).

Topics%20covered

Topics Covered

security advisory buffer overflow important OpenSUSE libvncserver CVE-2026-44988

Patch

## 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

* bsc#1266459

## References:

* https://www.suse.com/security/cve/CVE-2026-44988.html

* https://bugzilla.suse.com/show_bug.cgi?id=1266459

Severity
important
Lowest
Low
Medium
High
Critical

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

Topics%20covered

Topics Covered

security advisory buffer overflow important OpenSUSE libvncserver CVE-2026-44988

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