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SUSE Linux Micro 6.0 Kernel RT Important Security Update 2026-20396-1

suse
Calendar Grey February 17, 2026
Scroller Suse
Important kernel RT updates for SUSE Linux address multiple vulnerabilities and enhance security.
An update that solves seven vulnerabilities can now be installed.

Summary

## This update for the SUSE Linux Enterprise kernel 6.4.0-33.1 fixes various security issues The following security issues were fixed: * CVE-2023-53676: scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() (bsc#1251787). * CVE-2025-38476: rpl: Fix use-after-free in rpl_do_srh_inline() (bsc#1251203). * CVE-2025-38572: ipv6: reject malicious packets in ipv6_gso_segment() (bsc#1248400). * CVE-2025-38588: ipv6: prevent infinite loop in rt6_nlmsg_size() (bsc#1249241). * CVE-2025-38608: bpf, ktls: Fix data corruption when using bpf_msg_pop_data() in ktls (bsc#1248670). * CVE-2025-39682: tls: fix handling of zero-length records on the rx_list (bsc#1250192). * CVE-2025-40204: sctp: Fix MAC comparison to be constant-time (bsc#1253437). ## Patch Instructions:

References

* bsc#1248400

* bsc#1248670

* bsc#1249241

* bsc#1250192

* bsc#1251203

* bsc#1251787

* bsc#1253437

Cross-

* CVE-2023-53676

* CVE-2025-38476

* CVE-2025-38572

* CVE-2025-38588

* CVE-2025-38608

* CVE-2025-39682

* CVE-2025-40204

CVSS scores:

* CVE-2023-53676 ( SUSE ): 8.5

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

* CVE-2023-53676 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2023-53676 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-38476 ( SUSE ): 8.5

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

* CVE-2025-38476 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-38476 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-38572 ( SUSE ): 9.2

Severity
important
Lowest
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Announcement ID: SUSE-SU-2026:20396-1
Release Date: 2026-01-19T15:28:20Z
Rating: important

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