Linux · 
Red Hat · Security advisory · May 27, 2026
Red Hat · Security advisory · May 27, 2026RHSA-2026:18587: Security update for 72 packages
RHSA-2026:18587, released May 27, 2026, fixes 15 CVEs across 72 products. None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
15
None rated Critical
Exploited
0
None reported
Highest CVSS
8.9
Base score, 0 to 10
Highest EPSS
0.0043
37th percentile
Priority of the 15 CVEs
Patch now 0
Urgent 0
High 6
Routine 9
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| kernel | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-64k | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-64k-core | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-64k-debug | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-64k-debug-core | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-64k-debug-devel | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-64k-debug-devel-matched | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-64k-debug-modules | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-64k-debug-modules-core | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-64k-debug-modules-extra | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-64k-devel | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-64k-devel-matched | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-64k-modules | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-64k-modules-core | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-64k-modules-extra | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-abi-stablelists | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-core | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-debug | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-debug-core | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-debug-devel | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-debug-devel-matched | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-debug-modules | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-debug-modules-core | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-debug-modules-extra | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-debug-uki-virt | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-devel | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-devel-matched | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-doc | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-modules | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-modules-core | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-modules-extra | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-rt | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-rt-64k | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-rt-64k-core | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-rt-64k-debug | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-rt-64k-debug-core | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-rt-64k-debug-devel | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-rt-64k-debug-modules | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-rt-64k-debug-modules-core | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-rt-64k-debug-modules-extra | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-rt-64k-devel | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-rt-64k-modules | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-rt-64k-modules-core | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-rt-64k-modules-extra | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-rt-core | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-rt-debug | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-rt-debug-core | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-rt-debug-devel | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-rt-debug-modules | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-rt-debug-modules-core | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-rt-debug-modules-extra | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-rt-devel | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-rt-modules | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-rt-modules-core | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-rt-modules-extra | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-tools | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-tools-libs | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-tools-libs-devel | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-uki-virt | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-uki-virt-addons | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-zfcpdump | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-zfcpdump-core | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-zfcpdump-devel | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-zfcpdump-devel-matched | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-zfcpdump-modules | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-zfcpdump-modules-core | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| kernel-zfcpdump-modules-extra | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| libperf | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| perf | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| python3-perf | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| rtla | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
| rv | RHEL 9 | 0:5.14.0-687.5.1.el9_8 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2025-39866 | fs: writeback: fix use-after-free in __mark_inode_dirty() | 7.8 | 0.0031 | None reported |
| High | CVE-2025-38279 | bpf: Do not include stack ptr register in precision backtracking bookkeeping | 7.8 | 0.0024 | None reported |
| High | CVE-2025-38015 | kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system | 7.0 | 0.0020 | None reported |
| High | CVE-2026-23243 | RDMA/umad: Reject negative data_len in ib_umad_write | 7.8 | 0.0018 | None reported |
| High | CVE-2026-23040 | linux: In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211_hwsim: fix typo in frequency noti... | 7.6 | 0.0017 | None reported |
| High | CVE-2025-30156 | Ceph: AES-CBC misuse in CephX and RADOSGW enables authentication bypass and credential forgery | 8.9 | 0.0009 | None reported |
| Routine | CVE-2025-38405 | kernel-debug-devel: The kernel packages contain the Linux kernel, the core of any Linux operating system | 5.5 | 0.0043 | None reported |
| Routine | CVE-2025-40134 | kernel-64k-debug-modules-core: The kernel packages contain the Linux kernel, the core of any Linux operating system | 4.7 | 0.0023 | None reported |
| Routine | CVE-2025-38400 | kernel-64kb: The SUSE Linux Enterprise 15 SP7 kernel was updated to receive various security bugfixes. The following security bug... | 5.5 | 0.0022 | None reported |
| Routine | CVE-2025-38470 | net: vlan: fix VLAN 0 refcount imbalance of toggling filtering during runtime | 5.5 | 0.0021 | None reported |
| Routine | CVE-2025-38097 | espintcp: remove encap socket caching to avoid reference leak | 5.5 | 0.0021 | None reported |
| Routine | CVE-2025-22105 | kernel: In the Linux kernel, the following vulnerability has been resolved: bonding: check xdp prog when set bond mode Follow... | 5.5 | 0.0020 | None reported |
| Routine | CVE-2025-38166 | bpf: fix ktls panic with sockmap | 5.5 | 0.0020 | None reported |
| Routine | CVE-2025-37980 | block: fix resource leak in blk_register_queue() error path | 5.5 | 0.0019 | None reported |
| Routine | CVE-2025-38441 | kernel-debug-modules: The kernel packages contain the Linux kernel, the core of any Linux operating system | 5.5 | 0.0019 | None reported |
Showing 1 to 15 of 15
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