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SUSE Linux Micro 6.0 Kernel Important Heap Overflow Fix 2026-22462-1

suse
Calendar Grey July 3, 2026
Dist Suse Esm H88
Important update for SUSE Linux Enterprise Micro 6.0 fixes eight vulnerabilities and includes a security fix. Stay secure!
An update that solves eight vulnerabilities and has one fix can now be installed.

Summary

## This update for the SUSE Linux Enterprise Kernel 6.4.0-42.1 fixes various security issues The following security issues were fixed: * CVE-2025-54518: AMD-SN-7052: CPU OP Cache Corruption (bsc#1264096). * 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-2026-31694: fuse: reject oversized dirents in page cache (bsc#1263902). * CVE-2026-43503: final dirty.frag related fixes (bsc#1266229). * CVE-2026-46300: FragNesia attack: another xfrm/esp based local root exploit (bsc#1265224). * CVE-2026-46323: net: gro: don't merge zcopy skbs (bsc#1268282). * CVE-2026-46333: ptrace: slightly saner 'get_dumpable()' logic (bsc#1265384).

Topics%20covered

Topics Covered

security advisory security issue SuSE important heap overflow kernel

References

* bsc#1261640

* bsc#1263088

* bsc#1263902

* bsc#1264096

* bsc#1265224

* bsc#1265384

* bsc#1266229

* bsc#1267625

* bsc#1268282

Cross-

* CVE-2025-54518

* CVE-2026-31402

* CVE-2026-31504

* CVE-2026-31694

* CVE-2026-43503

* CVE-2026-46300

* CVE-2026-46323

* CVE-2026-46333

CVSS scores:

* CVE-2025-54518 ( SUSE ): 7.3

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

* CVE-2025-54518 ( SUSE ): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-54518 ( NVD ): 7.3

CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

* CVE-2025-54518 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2026-31402 ( SUSE ): 8.8

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:22462-1
Release Date: 2026-06-24T09:32:59Z
Rating: important

Topics%20covered

Topics Covered

security advisory security issue SuSE important heap overflow kernel

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