Linux · Security advisory · March 12, 2026

RHSA-2026:15883: kernel security update

RHSA-2026:15883, released March 12, 2026, fixes 6 CVEs in kernel (version 6.12.0-55.72.1.el10_0). None of them is reported as exploited. Patch Radar priority: Urgent.

Urgent
CVEs closed
6
1 rated Critical
Exploited
0
None reported
Exploitation more likely
0
Vendor assessment
Highest EPSS
0.0122
68th percentile

Priority of the 6 CVEs

Patch now 0 Urgent 1 High 5 Routine 0

Fixed package versions

ProductReleaseFixed in
kernelRHEL 106.12.0-55.72.1.el10_0

CVEs this fix closes

PriorityCVETitleImpactCVSSEPSSExploitation
Urgent CVE-2026-31402 kernel-default: The SUSE Linux Enterprise 15 SP6 kernel was updated to fix various security issues The following security issues wer... 9.8 0.0122 None reported
High CVE-2026-23139 linux: In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conncount: update last_gc only whe... 7.6 0.0038 None reported
High CVE-2026-23401 KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE 8.8 0.0019 None reported
High CVE-2026-23243 RDMA/umad: Reject negative data_len in ib_umad_write 7.8 0.0018 None reported
High CVE-2026-31532 can: raw: fix ro->uniq use-after-free in raw_rcv() 8.8 0.0017 None reported
High CVE-2026-23097 kernel-core: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: L... 7.5 0.0011 None reported
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