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SUSE LibVNCServer Important Rectangle Validation Issue Vuln 2026-22190-1

suse
Calendar Grey June 23, 2026
Dist Suse Esm H88
Critical LibVNCServer update addresses vulnerability CVE-2026-44988 for SUSE Linux Enterprise with important fixes.
An update that solves one vulnerability can now be installed.

Summary

## This update for LibVNCServer fixes the following issue * CVE-2026-44988: 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: * SUSE Linux Enterprise Server 16.0 zypper in -t patch SUSE-SLES-16.0-983=1 * SUSE Linux Enterprise Server for SAP applications 16.0 zypper in -t patch SUSE-SLES-16.0-983=1 ## Package List: * SUSE Linux Enterprise Server for SAP applications 16.0 (ppc64le x86_64) * libvncclient1-debuginfo-0.9.14-160000.5.1 * libvncserver1-0.9.14-160000.5.1 * libvncserver1-debuginfo-0.9.14-160000.5.1

Topics%20covered

Topics Covered

security advisory buffer overflow SuSE remote access important libvncserver

References

* bsc#1266459

Cross-

* 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:

* SUSE Linux Enterprise Server 16.0

* SUSE Linux Enterprise Server for SAP applications 16.0

An update that solves one vulnerability can now be installed.

##

* 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-2026:22190-1
Release Date: 2026-06-20T06:50:30Z
Rating: important

Topics%20covered

Topics Covered

security advisory buffer overflow SuSE remote access important libvncserver

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