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openSUSE Krb5 Important Heap Overflow CVE-2026-11850 Advisory 2026-2954-1

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Calendar Grey July 14, 2026
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This security update for krb5 addresses an important vulnerability to ensure system integrity on SUSE systems.
A security update for krb5 addresses a critical vulnerability (CVE-2026-11850) affecting various SUSE products, with available patches to mitigate risks associated with heap out-of...

Summary

## This update for krb5 fixes the following issue * CVE-2026-11850: integer underflow in berval2tl_data() leads to heap out-of- bounds read (bsc#1268131). ## 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 15 SP4 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-2954=1 * SUSE Linux Enterprise Server for SAP Applications 15 SP4 zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-2954=1 * SUSE Linux Enterprise Micro for Rancher 5.3 zypper in -t patch SUSE-SLE-Micro-5.3-2026-2954=1 * SUSE Linux Enterprise Micro 5.3 zypper in -t patch SUSE-SLE-Micro-5.3-2026-2954=1

Topics%20covered

Topics Covered

security advisory SuSE important heap overflow krb5 integer underflow

References

* bsc#1268131

Cross-

* CVE-2026-11850

CVSS scores:

* CVE-2026-11850 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H

* CVE-2026-11850 ( NVD ): 5.0 CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:H

Affected Products:

* openSUSE Leap 15.4

* SUSE Linux Enterprise High Performance Computing 15 SP4

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4

* 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

* SUSE Linux Enterprise Server 15 SP4

* SUSE Linux Enterprise Server 15 SP4 LTSS

* SUSE Linux Enterprise Server for SAP Applications 15 SP4

An update that solves one vulnerability can now be installed.

##

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2954-1
Release Date: 2026-07-14T09:57:42Z
Rating: important

Topics%20covered

Topics Covered

security advisory SuSE important heap overflow krb5 integer underflow

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