Linux · Security advisory · June 24, 2026
RHSA-2026:21706: Security update for 23 packages
RHSA-2026:21706, released June 24, 2026, fixes 19 CVEs across 23 products. None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
19
None rated Critical
Exploited
0
None reported
Exploitation more likely
0
Vendor assessment
Highest EPSS
0.0159
75th percentile
Priority of the 19 CVEs
Patch now 0
Urgent 0
High 19
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| bpftool | RHEL 8 | 0:4.18.0-553.126.1.el8_10 |
| kernel | RHEL 8 | 0:4.18.0-553.126.1.el8_10 |
| kernel-abi-stablelists | RHEL 8 | 0:4.18.0-553.126.1.el8_10 |
| kernel-core | RHEL 8 | 0:4.18.0-553.126.1.el8_10 |
| kernel-debug | RHEL 8 | 0:4.18.0-553.126.1.el8_10 |
| kernel-debug-core | RHEL 8 | 0:4.18.0-553.126.1.el8_10 |
| kernel-debug-devel | RHEL 8 | 0:4.18.0-553.126.1.el8_10 |
| kernel-debug-modules | RHEL 8 | 0:4.18.0-553.126.1.el8_10 |
| kernel-debug-modules-extra | RHEL 8 | 0:4.18.0-553.126.1.el8_10 |
| kernel-devel | RHEL 8 | 0:4.18.0-553.126.1.el8_10 |
| kernel-doc | RHEL 8 | 0:4.18.0-553.126.1.el8_10 |
| kernel-modules | RHEL 8 | 0:4.18.0-553.126.1.el8_10 |
| kernel-modules-extra | RHEL 8 | 0:4.18.0-553.126.1.el8_10 |
| kernel-tools | RHEL 8 | 0:4.18.0-553.126.1.el8_10 |
| kernel-tools-libs | RHEL 8 | 0:4.18.0-553.126.1.el8_10 |
| kernel-tools-libs-devel | RHEL 8 | 0:4.18.0-553.126.1.el8_10 |
| kernel-zfcpdump | RHEL 8 | 0:4.18.0-553.126.1.el8_10 |
| kernel-zfcpdump-core | RHEL 8 | 0:4.18.0-553.126.1.el8_10 |
| kernel-zfcpdump-devel | RHEL 8 | 0:4.18.0-553.126.1.el8_10 |
| kernel-zfcpdump-modules | RHEL 8 | 0:4.18.0-553.126.1.el8_10 |
| kernel-zfcpdump-modules-extra | RHEL 8 | 0:4.18.0-553.126.1.el8_10 |
| perf | RHEL 8 | 0:4.18.0-553.126.1.el8_10 |
| python3-perf | RHEL 8 | 0:4.18.0-553.126.1.el8_10 |
CVEs this fix closes
| Priority | CVE | Title | Impact | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|---|
| 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-2026-46195 | smb: client: validate dacloffset before building DACL pointers | 9.8 | 0.0068 | 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-2025-71116 | libceph: make decode_pool() more resilient against corrupted osdmaps | 8.1 | 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-2026-43051 | 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-2026-23243 | RDMA/umad: Reject negative data_len in ib_umad_write | 7.8 | 0.0018 | None reported | |
| High | CVE-2025-68347 | linux: In the Linux kernel, the following vulnerability has been resolved: ALSA: firewire-motu: fix buffer overflow in hwde... | 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-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-2025-39981 | Bluetooth: MGMT: Fix possible UAFs | 7.8 | 0.0015 | None reported | |
| High | CVE-2026-23270 | linux: In the Linux kernel, the following vulnerability has been resolved: net/sched: Only allow act_ct to bind to clsact/i... | 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-2026-43163 | linux: In the Linux kernel, the following vulnerability has been resolved: md/bitmap: fix GPF in write_page caused by resiz... | 8.1 | 0.0009 | None reported |
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