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SUSE libslirp Moderate Memory Leak Threat Security Update 2026-2886-1

suse
Calendar Grey July 13, 2026
Dist Suse Esm H88
SUSE releases a moderate security update for libslirp addressing CVE-2026-9539, improving system stability.
An update that solves one vulnerability can now be installed.

Summary

## This update for libslirp fixes the following issues: * CVE-2026-9539: crafted TCP segment with manipulated URG flags and urgent pointers can cause an integer underflow and host-heap memory leak (bsc#1268903). ## 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 Micro for Rancher 5.3 zypper in -t patch SUSE-SLE-Micro-5.3-2026-2886=1 * SUSE Linux Enterprise Micro 5.3 zypper in -t patch SUSE-SLE-Micro-5.3-2026-2886=1 * openSUSE Leap 15.3 zypper in -t patch SUSE-2026-2886=1 * SUSE Linux Enterprise Micro for Rancher 5.4 zypper in -t patch SUSE-SLE-Micro-5.4-2026-2886=1 * SUSE Linux Enterprise Micro 5.4

Topics%20covered

Topics Covered

security advisory moderate threat memory leak OpenSUSE libslirp

References

* bsc#1268903

Cross-

* CVE-2026-9539

CVSS scores:

* CVE-2026-9539 ( SUSE ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

* CVE-2026-9539 ( NVD ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Affected Products:

* openSUSE Leap 15.3

* SUSE Linux Enterprise Micro 5.3

* SUSE Linux Enterprise Micro 5.4

* SUSE Linux Enterprise Micro for Rancher 5.3

* SUSE Linux Enterprise Micro for Rancher 5.4

An update that solves one vulnerability can now be installed.

##

* https://www.suse.com/security/cve/CVE-2026-9539.html

* https://bugzilla.suse.com/show_bug.cgi?id=1268903

Severity
moderate
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2886-1
Release Date: 2026-07-13T10:09:11Z
Rating: moderate

Topics%20covered

Topics Covered

security advisory moderate threat memory leak OpenSUSE libslirp

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