Linux · 
Rocky Linux · Security advisory · May 30, 2026
Rocky Linux · Security advisory · May 30, 2026RLSA-2026:21556: kernel security update
RLSA-2026:21556, released May 30, 2026, fixes 19 CVEs in kernel (version 0:5.14.0-687.12.1.el9_8). None of them is reported as exploited. Patch Radar priority: Urgent.
Urgent
CVEs closed
19
1 rated Critical
Exploited
0
None reported
Highest CVSS
9.4
Base score, 0 to 10
Highest EPSS
0.0159
75th percentile
Priority of the 19 CVEs
Patch now 0
Urgent 1
High 18
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| kernel | rocky 9 | 0:5.14.0-687.12.1.el9_8 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| Urgent | CVE-2025-68366 | linux: In the Linux kernel, the following vulnerability has been resolved: nbd: defer config unlock in nbd_genl_connect Th... | 8.8 | 0.0020 | None reported |
| High | CVE-2026-23455 | kernel: In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_h323: check for zero leng... | 9.1 | 0.0159 | None reported |
| High | CVE-2026-31685 | netfilter: ip6t_eui64: reject invalid MAC header for all packets | 9.4 | 0.0049 | None reported |
| High | CVE-2026-43158 | linux: In the Linux kernel, the following vulnerability has been resolved: xfs: fix freemap adjustments when adding xattrs... | 8.8 | 0.0047 | None reported |
| High | CVE-2026-43190 | kernel: In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_tcpmss: check remaining length befo... | 8.2 | 0.0046 | None reported |
| High | CVE-2026-31709 | smb: client: validate the whole DACL before rewriting it in cifsacl | 8.8 | 0.0035 | None reported |
| High | CVE-2026-31408 | Bluetooth: SCO: Fix use-after-free in sco_recv_frame() due to missing sock_hold | 8.8 | 0.0032 | None reported |
| High | CVE-2026-43110 | linux: In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: validate bsscfg indices in IF ev... | 8.8 | 0.0027 | None reported |
| High | CVE-2026-43051 | linux: In the Linux kernel, the following vulnerability has been resolved: HID: wacom: fix out-of-bounds read in wacom_intu... | 8.1 | 0.0026 | None reported |
| High | CVE-2025-38653 | proc: use the same treatment to check proc_lseek as ones for proc_read_iter et.al | 7.8 | 0.0018 | None reported |
| High | CVE-2026-43303 | mm/page_alloc: clear page->private in free_pages_prepare() | 7.8 | 0.0017 | None reported |
| High | CVE-2026-23392 | netfilter: nf_tables: release flowtable after rcu grace period on error | 8.8 | 0.0017 | None reported |
| High | CVE-2025-71089 | iommu: disable SVA when CONFIG_X86 is set | 7.8 | 0.0016 | None reported |
| High | CVE-2025-68183 | linux: In the Linux kernel, the following vulnerability has been resolved: ima: don't clear IMA_DIGSIG flag when setting or... | 7.8 | 0.0015 | None reported |
| High | CVE-2025-68724 | linux: In the Linux kernel, the following vulnerability has been resolved: crypto: asymmetric_keys - prevent overflow in as... | 8.1 | 0.0014 | None reported |
| High | CVE-2026-43027 | linux: In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_helper: pass helper to e... | 7.8 | 0.0013 | None reported |
| High | CVE-2026-43020 | linux: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: validate LTK enc_size on load... | 7.8 | 0.0013 | None reported |
| High | CVE-2026-31684 | net: sched: act_csum: validate nested VLAN headers | 7.8 | 0.0012 | None reported |
| High | CVE-2026-43023 | kernel: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: SCO: fix race conditions in sco_sock_c... | 7.8 | 0.0010 | None reported |
Showing 1 to 19 of 19
1
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.