Linux · SUSE Linux Enterprise · Security advisory · September 20, 2026

SUSE-SU-2026:23850-1: corosync security update

SUSE-SU-2026:23850-1, released September 20, 2026, fixes 2 CVEs in corosync (version 3.1.9-160000.4.1). None of them is reported as exploited. Patch Radar priority: High.

High
CVEs closed
2
None rated Critical
Exploited
0
None reported
Highest CVSS
7.5
Base score, 0 to 10
Highest EPSS
0.0042
36th percentile

Priority of the 2 CVEs

Patch now 0 Urgent 0 High 1 Routine 1

Fixed package versions

ProductReleaseFixed in
corosyncsles 16.03.1.9-160000.4.1

CVEs this fix closes

PriorityCVETitleCVSSEPSSExploitation
High CVE-2026-81665 corosync: totempg: Replace assert with check in deliver_fn (fixes7.5 0.0042 None reported
Routine CVE-2026-81666 corosync: integer overflow in check_memb_commit_token_sanity may bypass message length validation on 32-bitn/a 0.0025 None reported
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