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9.4

CVE-2026-23246: Linux updates fix remote code risk on Ubuntu 24.04

CVE-2026-23246 · published 1 day ago
Summary

Several Linux distributions, including Ubuntu 24.04, have released updates that close a security hole that could let an attacker run code on your server. The problem is resolved in the latest package versions, so applying the updates restores normal protection. Make sure your systems are updated to the newest Linux packages as soon as possible.

What to do
  • Update debian linux to version 6.19.8-1.
  • Update debian rootio-linux to version 6.12.74-2.root.io.101.
  • Update linux kernel to version 6.19.7.
  • Update canonical linux-gcp-6.8 to version 6.8.0-1064.72~22.04.1.
  • Update canonical linux-realtime-6.8 to version 6.8.1-1056.57~22.04.2.
  • Update canonical linux to version 6.8.0-136.136.
  • Update canonical linux-gcp to version 6.8.0-1064.72.
  • Update canonical linux-gke to version 6.8.0-1059.67.
  • Update canonical linux-gkeop to version 6.8.0-1046.50.
  • Update canonical linux-gcp-fips to version 6.8.0-1064.72+fips1.
  • Update canonical linux-realtime to version 6.8.1-1056.57.
  • Update debian rootio-linux to version 6.12.100-1.aikido.156.
  • Update debian linux to version 6.12.100-1.aikido.156.
  • Update canonical linux-aws-6.8 to version 6.8.0-1061.64~22.04.1.
  • Update canonical linux-azure-6.8 to version 6.8.0-1063.71~22.04.1.
  • Update canonical linux-azure-fde-6.8 to version 6.8.0-1062.69~22.04.1.
  • Update canonical linux-hwe-6.8 to version 6.8.0-136.136~22.04.1.
  • Update canonical linux-ibm-6.8 to version 6.8.0-1061.62~22.04.1.
  • Update canonical linux-lowlatency-hwe-6.8 to version 6.8.0-136.136.2~22.04.1.
  • Update canonical linux-nvidia-6.8 to version 6.8.0-1059.62~22.04.1.
  • Update canonical linux-oracle-6.8 to version 6.8.0-1058.61~22.04.1.
  • Update canonical linux-riscv-6.8 to version 6.8.0-136.136~22.04.3.
  • Update canonical linux-aws to version 6.8.0-1061.64.
  • Update canonical linux-azure to version 6.8.0-1063.71.
  • Update canonical linux-azure-fde to version 6.8.0-1062.69.
  • Update canonical linux-ibm to version 6.8.0-1061.62.
  • Update canonical linux-lowlatency to version 6.8.0-136.136.2.
  • Update canonical linux-nvidia to version 6.8.0-1059.62.
  • Update canonical linux-nvidia-lowlatency to version 6.8.0-1059.62.1.
  • Update canonical linux-nvidia-tegra to version 6.8.0-1030.31.
  • Update canonical linux-oracle to version 6.8.0-1058.61.
  • Update canonical linux-raspi to version 6.8.0-1061.65.
  • Update canonical linux-xilinx to version 6.8.0-1033.34.
  • Update canonical linux-aws-fips to version 6.8.0-1061.64+fips1.
  • Update canonical linux-azure-fips to version 6.8.0-1063.71+fips2.
  • Update canonical linux-fips to version 6.8.0-136.136+fips2.
  • Update canonical linux-raspi-realtime to version 6.8.0-2050.52.
  • Update debian rootio-linux to version 6.12.95-1.root.io.150.
  • Update canonical linux to version 6.8.0-138.138.aikido.87.
  • Update canonical rootio-linux to version 6.8.0-138.138.aikido.87.
  • Update debian linux to version 6.12.85-1.
  • Update canonical linux-bluefield to version 6.8.0-1028.33.
  • Update linux to version 6.8.0-146.146.aikido.89.
  • Update rootio-linux to version 6.8.0-146.146.aikido.89.
  • Update linux linux to version 650981e718e68005ca2760a6358134b8a98ebea4 or later.
Affected software
Ecosystem VendorProductAffected versions
Debian:13 debian linux < 6.12.85-1
Fix: upgrade to 6.12.85-1
Debian:14 debian linux < 6.19.8-1
Fix: upgrade to 6.19.8-1
Ubuntu:18.04:LTS canonical linux-gcp All versions
Ubuntu:18.04:LTS canonical linux-gcp-5.3 All versions
Ubuntu:18.04:LTS canonical linux-gke-4.15 All versions
Ubuntu:18.04:LTS canonical linux-gke-5.4 All versions
Ubuntu:18.04:LTS canonical linux-gkeop-5.4 All versions
Ubuntu:18.04:LTS canonical linux-hwe All versions
Ubuntu:18.04:LTS canonical linux-hwe-edge All versions
Ubuntu:18.04:LTS canonical linux-oem All versions
Ubuntu:18.04:LTS canonical linux-oracle-5.0 All versions
Ubuntu:18.04:LTS canonical linux-oracle-5.3 All versions
Ubuntu:20.04:LTS canonical linux-aws-5.11 All versions
Ubuntu:20.04:LTS canonical linux-aws-5.13 All versions
Ubuntu:20.04:LTS canonical linux-aws-5.8 All versions
Ubuntu:20.04:LTS canonical linux-azure-5.11 All versions
Ubuntu:20.04:LTS canonical linux-azure-5.13 All versions
Ubuntu:20.04:LTS canonical linux-azure-5.8 All versions
Ubuntu:20.04:LTS canonical linux-azure-fde All versions
Ubuntu:20.04:LTS canonical linux-gcp-5.11 All versions
Ubuntu:20.04:LTS canonical linux-gcp-5.13 All versions
Ubuntu:20.04:LTS canonical linux-gcp-5.8 All versions
Ubuntu:20.04:LTS canonical linux-gke All versions
Ubuntu:20.04:LTS canonical linux-gke-5.15 All versions
Ubuntu:20.04:LTS canonical linux-gkeop All versions
Ubuntu:20.04:LTS canonical linux-gkeop-5.15 All versions
Ubuntu:20.04:LTS canonical linux-hwe-5.11 All versions
Ubuntu:20.04:LTS canonical linux-hwe-5.13 All versions
Ubuntu:20.04:LTS canonical linux-hwe-5.8 All versions
Ubuntu:20.04:LTS canonical linux-intel-5.13 All versions
Ubuntu:20.04:LTS canonical linux-oem-5.10 All versions
Ubuntu:20.04:LTS canonical linux-oem-5.13 All versions
Ubuntu:20.04:LTS canonical linux-oem-5.14 All versions
Ubuntu:20.04:LTS canonical linux-oem-5.6 All versions
Ubuntu:20.04:LTS canonical linux-oracle-5.11 All versions
Ubuntu:20.04:LTS canonical linux-oracle-5.13 All versions
Ubuntu:20.04:LTS canonical linux-oracle-5.8 All versions
Ubuntu:20.04:LTS canonical linux-raspi2 All versions
Ubuntu:20.04:LTS canonical linux-riscv All versions
Ubuntu:20.04:LTS canonical linux-riscv-5.11 All versions
Ubuntu:20.04:LTS canonical linux-riscv-5.8 All versions
Ubuntu:22.04:LTS canonical linux-allwinner-5.19 All versions
Ubuntu:22.04:LTS canonical linux-aws-5.19 All versions
Ubuntu:22.04:LTS canonical linux-aws-6.2 All versions
Ubuntu:22.04:LTS canonical linux-aws-6.5 All versions
Ubuntu:22.04:LTS canonical linux-aws-6.8 < 6.8.0-1061.64~22.04.1
Fix: upgrade to 6.8.0-1061.64~22.04.1
Ubuntu:22.04:LTS canonical linux-azure-5.19 All versions
Ubuntu:22.04:LTS canonical linux-azure-6.2 All versions
Ubuntu:22.04:LTS canonical linux-azure-6.5 All versions
Ubuntu:22.04:LTS canonical linux-azure-6.8 < 6.8.0-1063.71~22.04.1
Fix: upgrade to 6.8.0-1063.71~22.04.1
Showing 50 of 164. Show the rest
Ecosystem VendorProductAffected versions
Ubuntu:22.04:LTS canonical linux-azure-fde-5.19 All versions
Ubuntu:22.04:LTS canonical linux-azure-fde-6.2 All versions
Ubuntu:22.04:LTS canonical linux-azure-fde-6.8 < 6.8.0-1062.69~22.04.1
Fix: upgrade to 6.8.0-1062.69~22.04.1
Ubuntu:22.04:LTS canonical linux-gcp-5.19 All versions
Ubuntu:22.04:LTS canonical linux-gcp-6.2 All versions
Ubuntu:22.04:LTS canonical linux-gcp-6.5 All versions
Ubuntu:22.04:LTS canonical linux-gcp-6.8 < 6.8.0-1064.72~22.04.1
Fix: upgrade to 6.8.0-1064.72~22.04.1
Ubuntu:22.04:LTS canonical linux-hwe-5.19 All versions
Ubuntu:22.04:LTS canonical linux-hwe-6.2 All versions
Ubuntu:22.04:LTS canonical linux-hwe-6.5 All versions
Ubuntu:22.04:LTS canonical linux-hwe-6.8 < 6.8.0-136.136~22.04.1
Fix: upgrade to 6.8.0-136.136~22.04.1
Ubuntu:22.04:LTS canonical linux-ibm-6.8 < 6.8.0-1061.62~22.04.1
Fix: upgrade to 6.8.0-1061.62~22.04.1
Ubuntu:22.04:LTS canonical linux-intel-iot-realtime All versions
Ubuntu:22.04:LTS canonical linux-lowlatency-hwe-5.19 All versions
Ubuntu:22.04:LTS canonical linux-lowlatency-hwe-6.2 All versions
Ubuntu:22.04:LTS canonical linux-lowlatency-hwe-6.5 All versions
Ubuntu:22.04:LTS canonical linux-lowlatency-hwe-6.8 < 6.8.0-136.136.2~22.04.1
Fix: upgrade to 6.8.0-136.136.2~22.04.1
Ubuntu:22.04:LTS canonical linux-nvidia-6.2 All versions
Ubuntu:22.04:LTS canonical linux-nvidia-6.5 All versions
Ubuntu:22.04:LTS canonical linux-nvidia-6.8 < 6.8.0-1059.62~22.04.1
Fix: upgrade to 6.8.0-1059.62~22.04.1
Ubuntu:22.04:LTS canonical linux-oem-5.17 All versions
Ubuntu:22.04:LTS canonical linux-oem-6.0 All versions
Ubuntu:22.04:LTS canonical linux-oem-6.1 All versions
Ubuntu:22.04:LTS canonical linux-oem-6.5 All versions
Ubuntu:22.04:LTS canonical linux-oracle-6.5 All versions
Ubuntu:22.04:LTS canonical linux-oracle-6.8 < 6.8.0-1058.61~22.04.1
Fix: upgrade to 6.8.0-1058.61~22.04.1
Ubuntu:22.04:LTS canonical linux-realtime All versions
Ubuntu:22.04:LTS canonical linux-riscv All versions
Ubuntu:22.04:LTS canonical linux-riscv-5.19 All versions
Ubuntu:22.04:LTS canonical linux-riscv-6.5 All versions
Ubuntu:22.04:LTS canonical linux-riscv-6.8 < 6.8.0-136.136~22.04.3
Fix: upgrade to 6.8.0-136.136~22.04.3
Ubuntu:22.04:LTS canonical linux-starfive-5.19 All versions
Ubuntu:22.04:LTS canonical linux-starfive-6.2 All versions
Ubuntu:22.04:LTS canonical linux-starfive-6.5 All versions
Ubuntu:Pro:Realtime:22.04:LTS canonical linux-realtime-6.8 < 6.8.1-1056.57~22.04.2
Fix: upgrade to 6.8.1-1056.57~22.04.2
Ubuntu:24.04:LTS canonical linux < 6.8.0-136.136
Fix: upgrade to 6.8.0-136.136
Ubuntu:24.04:LTS canonical linux-aws < 6.8.0-1061.64
Fix: upgrade to 6.8.0-1061.64
Ubuntu:24.04:LTS canonical linux-aws-6.14 All versions
Ubuntu:24.04:LTS canonical linux-aws-6.17 All versions
Ubuntu:24.04:LTS canonical linux-azure < 6.8.0-1063.71
Fix: upgrade to 6.8.0-1063.71
Ubuntu:24.04:LTS canonical linux-azure-6.11 All versions
Ubuntu:24.04:LTS canonical linux-azure-6.14 All versions
Ubuntu:24.04:LTS canonical linux-azure-6.17 All versions
Ubuntu:24.04:LTS canonical linux-azure-fde < 6.8.0-1062.69
Fix: upgrade to 6.8.0-1062.69
Ubuntu:24.04:LTS canonical linux-azure-fde-6.14 All versions
Ubuntu:24.04:LTS canonical linux-azure-fde-6.17 All versions
Ubuntu:24.04:LTS canonical linux-azure-nvidia All versions
Ubuntu:24.04:LTS canonical linux-azure-nvidia-6.14 All versions
Ubuntu:24.04:LTS canonical linux-gcp < 6.8.0-1064.72
Fix: upgrade to 6.8.0-1064.72
Ubuntu:24.04:LTS canonical linux-gcp-6.11 All versions
Ubuntu:24.04:LTS canonical linux-gcp-6.14 All versions
Ubuntu:24.04:LTS canonical linux-gcp-6.17 All versions
Ubuntu:24.04:LTS canonical linux-gkeop < 6.8.0-1046.50
Fix: upgrade to 6.8.0-1046.50
Ubuntu:24.04:LTS canonical linux-hwe-6.11 All versions
Ubuntu:24.04:LTS canonical linux-hwe-6.14 All versions
Ubuntu:24.04:LTS canonical linux-hwe-6.17 All versions
Ubuntu:24.04:LTS canonical linux-ibm < 6.8.0-1061.62
Fix: upgrade to 6.8.0-1061.62
Ubuntu:24.04:LTS canonical linux-lowlatency < 6.8.0-136.136.2
Fix: upgrade to 6.8.0-136.136.2
Ubuntu:24.04:LTS canonical linux-lowlatency-hwe-6.11 All versions
Ubuntu:24.04:LTS canonical linux-nvidia < 6.8.0-1059.62
Fix: upgrade to 6.8.0-1059.62
Ubuntu:24.04:LTS canonical linux-nvidia-6.11 All versions
Ubuntu:24.04:LTS canonical linux-nvidia-lowlatency < 6.8.0-1059.62.1
Fix: upgrade to 6.8.0-1059.62.1
Ubuntu:24.04:LTS canonical linux-nvidia-tegra < 6.8.0-1030.31
Fix: upgrade to 6.8.0-1030.31
Ubuntu:24.04:LTS canonical linux-oem-6.11 All versions
Ubuntu:24.04:LTS canonical linux-oem-6.14 All versions
Ubuntu:24.04:LTS canonical linux-oem-6.17 All versions
Ubuntu:24.04:LTS canonical linux-oem-6.8 All versions
Ubuntu:24.04:LTS canonical linux-oracle < 6.8.0-1058.61
Fix: upgrade to 6.8.0-1058.61
Ubuntu:24.04:LTS canonical linux-oracle-6.14 All versions
Ubuntu:24.04:LTS canonical linux-oracle-6.17 All versions
Ubuntu:24.04:LTS canonical linux-raspi < 6.8.0-1061.65
Fix: upgrade to 6.8.0-1061.65
Ubuntu:24.04:LTS canonical linux-raspi-realtime All versions
Ubuntu:24.04:LTS canonical linux-realtime All versions
Ubuntu:24.04:LTS canonical linux-riscv All versions
Ubuntu:24.04:LTS canonical linux-riscv-6.14 All versions
Ubuntu:24.04:LTS canonical linux-riscv-6.17 All versions
Ubuntu:24.04:LTS canonical linux-xilinx < 6.8.0-1033.34
Fix: upgrade to 6.8.0-1033.34
Ubuntu:Pro:FIPS-updates:24.04:LTS canonical linux-aws-fips < 6.8.0-1061.64+fips1
Fix: upgrade to 6.8.0-1061.64+fips1
Ubuntu:Pro:FIPS-updates:24.04:LTS canonical linux-azure-fips < 6.8.0-1063.71+fips2
Fix: upgrade to 6.8.0-1063.71+fips2
Ubuntu:Pro:FIPS-updates:24.04:LTS canonical linux-fips < 6.8.0-136.136+fips2
Fix: upgrade to 6.8.0-136.136+fips2
Ubuntu:Pro:FIPS-updates:24.04:LTS canonical linux-gcp-fips < 6.8.0-1064.72+fips1
Fix: upgrade to 6.8.0-1064.72+fips1
Ubuntu:Pro:Realtime:24.04:LTS canonical linux-raspi-realtime < 6.8.0-2050.52
Fix: upgrade to 6.8.0-2050.52
Ubuntu:Pro:Realtime:24.04:LTS canonical linux-realtime < 6.8.1-1056.57
Fix: upgrade to 6.8.1-1056.57
Ubuntu:Pro:Realtime:24.04:LTS canonical linux-realtime-6.14 All versions
Ubuntu:Pro:Realtime:24.04:LTS canonical linux-realtime-6.17 All versions
Ubuntu:25.10 canonical linux All versions
Ubuntu:25.10 canonical linux-aws All versions
Ubuntu:25.10 canonical linux-azure All versions
Ubuntu:25.10 canonical linux-azure-fde All versions
Ubuntu:25.10 canonical linux-gcp All versions
Ubuntu:25.10 canonical linux-oracle All versions
Ubuntu:25.10 canonical linux-raspi All versions
Ubuntu:25.10 canonical linux-realtime All versions
Ubuntu:25.10 canonical linux-riscv All versions
Root:Debian:13 debian rootio-linux < 6.12.74-2.root.io.101
< 6.12.100-1.aikido.156
< 6.12.95-1.root.io.150
Fix: upgrade to 6.12.74-2.root.io.101
Ubuntu:24.04:LTS canonical linux-gke < 6.8.0-1059.67
Fix: upgrade to 6.8.0-1059.67
Ubuntu:16.04:LTS canonical linux-hwe-edge All versions
Ubuntu:18.04:LTS canonical linux-aws-5.0 All versions
Ubuntu:18.04:LTS canonical linux-aws-5.3 All versions
Ubuntu:18.04:LTS canonical linux-azure All versions
Ubuntu:18.04:LTS canonical linux-azure-5.3 All versions
Ubuntu:18.04:LTS canonical linux-azure-edge All versions
Alpaquita:25 bellsoft linux-lts >= 6.12.74-r0
Alpaquita:stream bellsoft linux-lts >= 6.12.76-r0
Linux linux kernel >= 6.19.0, < 6.19.7
Fix: upgrade to 6.19.7
Ubuntu:24.04:LTS canonical linux-nvidia-6.17 All versions
Ubuntu:Nvidia-BlueField:24.04:LTS canonical linux-bluefield < 6.8.0-1028.33
Fix: upgrade to 6.8.0-1028.33
Root:Debian:13 debian linux < 6.12.100-1.aikido.156
Fix: upgrade to 6.12.100-1.aikido.156
– linux linux < 650981e718e68005ca2760a6358134b8a98ebea4
6.5
Root:Ubuntu:24.04 canonical linux < 6.8.0-138.138.aikido.87
Fix: upgrade to 6.8.0-138.138.aikido.87
Root:Ubuntu:24.04 canonical rootio-linux < 6.8.0-138.138.aikido.87
Fix: upgrade to 6.8.0-138.138.aikido.87
– linux linux_kernel >= 6.5.1, < 6.6.130
>= 6.7, < 6.12.77
>= 6.13, < 6.18.17
>= 6.19, < 6.19.7
6.5
7.0
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Root:Ubuntu:24.04 – linux < 6.8.0-146.146.aikido.89
Fix: upgrade to 6.8.0-146.146.aikido.89
Root:Ubuntu:24.04 – rootio-linux < 6.8.0-146.146.aikido.89
Fix: upgrade to 6.8.0-146.146.aikido.89
Original advisory text
CVE-2026-23246 in linux - Patched by Root
Root has patched CVE-2026-23246 in the linux package for Root:Ubuntu:24.04. Multiple fixed versions available.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker full control (estimated)
Severity
9.4 Critical
Exploitation
<1% chance of attack within 30 days
Type
CWE-129Improper Validation of Array Index
Timeline
Published9 Oct 2026
Updated9 Oct 2026
First seen18 Mar 2026
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