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SUSE-SU-2026:2603-1 | Mondoo Vulnerability Intelligence

Vulnerability IntelligenceSUSE-SU-2026:2603-1

SUSE-SU-2026:2603-1

HIGH8.8

Security update for the Linux Kernel (Live Patch 80 for SUSE Linux Enterprise 12 SP5)

Published Jun 23, 2026

Modified 2 days ago

Fix available

Details

Description of the patch:

This update for the SUSE Linux Enterprise Kernel 4.12.14-122.302 fixes various security issues

The following security issues were fixed:

CVE-2026-31402: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (bsc#1261640).
CVE-2026-31504: net: fix fanout UAF in packet_release() via NETDEV_UP race (bsc#1263088).
CVE-2026-43503: final dirty.frag related fixes (bsc#1266229).
CVE-2026-46323: net: gro: don't merge zcopy skbs (bsc#1268282).

Affected Packages

kgraft-patch-4_12_14-122_302-default

SUSE Linux Enterprise Live Patching 12 SP5

Fixed in:

4-2.1

References

https://bugzilla.suse.com/1261640

https://bugzilla.suse.com/1263088

https://bugzilla.suse.com/1266229

https://bugzilla.suse.com/1268282

https://lists.suse.com/pipermail/sle-updates/2026-June/047595.html

https://www.suse.com/security/cve/CVE-2026-31402/

https://www.suse.com/security/cve/CVE-2026-31504/

https://www.suse.com/security/cve/CVE-2026-43503/

https://www.suse.com/security/cve/CVE-2026-46323/

https://www.suse.com/support/security/rating/

https://www.suse.com/support/update/announcement/2026/suse-su-20262603-1/

CVSS Analysis

CVSS v3.1

8.8

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

Scope

ChangedS:C

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

HighA:H

8.8/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Upstream

CVE-2026-31402 CVE-2026-31504 CVE-2026-43503 CVE-2026-46323

Ecosystems

SUSE Linux Enterprise Live Patching 12 SP5

Timeline

PublishedJun 23, 2026

ModifiedJun 23, 2026