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SUSE Linux Enterprise 15 SP7 Kernel Important RT Update CVE-2026-53366

suse
Calendar Grey July 27, 2026
Scroller Suse
Update for SUSE Linux Enterprise 15 SP7 addresses critical kernel security issue with CVE-2026-53366.
A critical security update for SUSE Linux Enterprise 15 SP7 addresses CVE-2026-53366, improving protection against vulnerability related to IPv4 fragmentation

Summary

## This update for the SUSE Linux Enterprise Kernel 6.4.0-150700.7.62 fixes various security issues: The following security issues were fixed: * CVE-2026-53366: ipv4: account for fraggap on the paged allocation path (bsc#1271370). ## 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 Live Patching 15-SP7 zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP7-2026-3253=1 ## Package List: * SUSE Linux Enterprise Live Patching 15-SP7 (x86_64) * kernel-livepatch-6_4_0-150700_7_62-rt-debuginfo-2-150700.2.1 * kernel-livepatch-6_4_0-150700_7_62-rt-2-150700.2.1

Topics%20covered

Topics Covered

security advisory SuSE patch important kernel IPv4

References

* bsc#1271370

Cross-

* CVE-2026-53366

CVSS scores:

* CVE-2026-53366 ( SUSE ): 9.0

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

* CVE-2026-53366 ( SUSE ): 8.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

* CVE-2026-53366 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products:

* SUSE Linux Enterprise Live Patching 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-2026-53366.html

* https://bugzilla.suse.com/show_bug.cgi?id=1271370

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:3253-1
Release Date: 2026-07-25T04:04:27Z
Rating: important

Topics%20covered

Topics Covered

security advisory SuSE patch important kernel IPv4

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