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SUSE Util-linux Moderate TOCTOU Risk Advisory 2026-2485-1 CVE-2026-27456

suse
Calendar Grey June 22, 2026
Dist Suse Esm H88
Important SUSE security update for util-linux addressing a moderate risk TOCTOU issue in the mount program.
An update that solves one vulnerability can now be installed.

Summary

## This update for util-linux fixes the following issue * CVE-2026-27456: TOCTOU in the mount program when setting up loop devices (bsc#1261606). ## 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: * Basesystem Module 15-SP7 zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-2485=1 * Server Applications Module 15-SP7 zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP7-2026-2485=1 ## Package List: * Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64) * libmount1-2.40.4-150700.4.13.1 * libuuid-devel-2.40.4-150700.4.13.1 * libsmartcols-devel-2.40.4-150700.4.13.1 * libsmartcols1-2.40.4-150700.4.13.1

Topics%20covered

Topics Covered

security advisory moderate SuSE util-linux mount loop

References

* bsc#1261606

Cross-

* CVE-2026-27456

CVSS scores:

* CVE-2026-27456 ( SUSE ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

* CVE-2026-27456 ( NVD ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected Products:

* Basesystem Module 15-SP7

* Server Applications Module 15-SP7

* 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

An update that solves one vulnerability can now be installed.

##

* https://www.suse.com/security/cve/CVE-2026-27456.html

* https://bugzilla.suse.com/show_bug.cgi?id=1261606

Severity
moderate
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2485-1
Release Date: 2026-06-22T12:06:37Z
Rating: moderate

Topics%20covered

Topics Covered

security advisory moderate SuSE util-linux mount loop

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