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SUSE Linux Micro 5.2 Important Expati DoS Null Pointer Exploits 2026-1137-1

suse
Calendar Grey March 30, 2026
Dist Suse Esm H88
An important security update for SUSE expat addresses multiple vulnerabilities, including DoS and pointer dereference risks.
An update that solves three vulnerabilities can now be installed.

Summary

## This update for expat fixes the following issues: * CVE-2026-32776: NULL pointer dereference when processing empty external parameter entities inside an entity declaration value (bsc#1259726). * CVE-2026-32777: denial of service due to infinite loop in DTD content parsing (bsc#1259711). * CVE-2026-32778: NULL pointer dereference in `setContext` on retry after an out-of-memory condition (bsc#1259729). ## 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 5.2 zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-1137=1 * SUSE Linux Enterprise Micro for Rancher 5.2 zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-1137=1

Topics%20covered

Topics Covered

security advisory denial of service SuSE important pointer dereference expat

References

* bsc#1259711

* bsc#1259726

* bsc#1259729

Cross-

* CVE-2026-32776

* CVE-2026-32777

* CVE-2026-32778

CVSS scores:

* CVE-2026-32776 ( SUSE ): 8.7

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

* CVE-2026-32776 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-32776 ( NVD ): 4.0 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

* CVE-2026-32776 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-32777 ( SUSE ): 8.7

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

* CVE-2026-32777 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-32777 ( NVD ): 4.0 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

* CVE-2026-32777 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:1137-1
Release Date: 2026-03-28T02:34:02Z
Rating: important

Topics%20covered

Topics Covered

security advisory denial of service SuSE important pointer dereference expat

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