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SUSE libnfs Important Integer Overflow Issue 2026-2760-1

suse
Calendar Grey July 6, 2026
Dist Suse Esm H88
Update available for libnfs on SUSE to address critical security concerns. Immediate installation recommended for safety.
An update that solves one vulnerability can now be installed.

Summary

## This update for libnfs fixes the following issue * CVE-2026-53689: integer overflow during a connection to a crafted NFS server (bsc#1268135). Changes for libnfs: * Add libnfs-CVE-2026-53689.patch: ZDR: check the string size for sanity (bsc#1268135 CVE-2026-53689). ## 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: * Desktop Applications Module 15-SP7 zypper in -t patch SUSE-SLE-Module-Desktop-Applications-15-SP7-2026-2760=1 * SUSE Linux Enterprise Server 15 SP6 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-2760=1 * SUSE Linux Enterprise Server for SAP Applications 15 SP5

Topics%20covered

Topics Covered

security advisory SuSE important integer overflow network attack libnfs

References

* bsc#1268135

Cross-

* CVE-2026-53689

CVSS scores:

* CVE-2026-53689 ( SUSE ): 7.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L

* CVE-2026-53689 ( NVD ): 7.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L

Affected Products:

* Basesystem Module 15-SP7

* Desktop Applications Module 15-SP7

* SUSE Linux Enterprise Desktop 15 SP7

* SUSE Linux Enterprise High Performance Computing 15 SP4

* SUSE Linux Enterprise High Performance Computing 15 SP5

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5

* SUSE Linux Enterprise Real Time 15 SP7

* SUSE Linux Enterprise Server 15 SP4

* SUSE Linux Enterprise Server 15 SP4 LTSS

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2760-1
Release Date: 2026-07-06T04:05:32Z
Rating: important

Topics%20covered

Topics Covered

security advisory SuSE important integer overflow network attack libnfs

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