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3.3
CVE-2026-23321: Linux kernel packages may let attackers run code
CVE-2026-23321 · published 2 days ago
Summary
Several Canonical Linux kernel packages, including the standard and cloud versions, have a weakness that could allow a malicious user to run their own code on the server. This could give the attacker control over the system and expose sensitive data. Install the latest updates from Canonical as soon as possible to close the gap.
What to do
- Update debian linux to version 6.19.8-1.
- Update debian rootio-linux to version 6.1.164-1.root.io.120.
- Update linux kernel to version 6.19.7.
- Update canonical rootio-linux to version 6.8.0-124.124.root.io.73.
- Update canonical linux-bluefield to version 6.8.0-1028.33.
- 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-gcp-6.8 to version 6.8.0-1064.72~22.04.1.
- 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-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-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-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-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-gcp-fips to version 6.8.0-1064.72+fips1.
- Update canonical linux-raspi-realtime to version 6.8.0-2050.52.
- Update canonical linux-realtime to version 6.8.1-1056.57.
- Update debian rootio-linux to version 6.12.74-2.root.io.110.
- Update canonical rootio-linux to version 6.8.0-117.117.root.io.68.
- Update canonical rootio-linux to version 6.8.0-124.124.root.io.70.
- Update canonical rootio-linux to version 6.8.0-124.124.root.io.71.
- Update canonical rootio-linux to version 6.8.0-134.134.root.io.79.
- Update canonical rootio-linux to version 6.8.0-134.134.root.io.80.
- Update canonical rootio-linux to version 6.8.0-136.136.root.io.82.
- Update canonical rootio-linux to version 6.8.0-136.136.root.io.83.
- Update debian linux to version 6.1.170-1.
- Update debian linux to version 6.12.85-1.
- 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 to version 6.8.0-147.147.aikido.90.
- Update rootio-linux to version 6.8.0-147.147.aikido.90.
- Update linux to version 6.12.113-1.aikido.163.
- Update rootio-linux to version 6.12.113-1.aikido.163.
- Update linux linux to version c5c877e140e5f46023a74a51e577ce5edd0a4be7 or later.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| 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 |
| 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
|
Showing 50 of 164. Show the rest
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| 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
|
| 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-gke |
< 6.8.0-1059.67 Fix: upgrade to 6.8.0-1059.67
|
| 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-6.17 | 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:Nvidia-BlueField:24.04:LTS | canonical | linux-bluefield |
< 6.8.0-1028.33 Fix: upgrade to 6.8.0-1028.33
|
| 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 |
| Debian:12 | debian | linux |
< 6.1.170-1 Fix: upgrade to 6.1.170-1
|
| 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
|
| Root:Debian:12 | debian | rootio-linux |
< 6.1.164-1.root.io.120 Fix: upgrade to 6.1.164-1.root.io.120
|
| – | linux | linux_kernel |
>= 6.1.106, < 6.1.167 >= 6.6.46, < 6.6.130 >= 6.10.5, < 6.11 >= 6.11.1, < 6.12.78 >= 6.13, < 6.18.17 >= 6.19, < 6.19.7 6.11 7.0 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Linux | linux | kernel |
>= 6.13.0, < 6.19.7 Fix: upgrade to 6.19.7
|
| Root:Ubuntu:24.04 | canonical | rootio-linux |
< 6.8.0-124.124.root.io.73 < 6.8.0-117.117.root.io.68 < 6.8.0-124.124.root.io.70 < 6.8.0-124.124.root.io.71 < 6.8.0-134.134.root.io.79 < 6.8.0-134.134.root.io.80 < 6.8.0-136.136.root.io.82 < 6.8.0-136.136.root.io.83 Fix: upgrade to 6.8.0-124.124.root.io.73
|
| – | linux | linux |
< c5c877e140e5f46023a74a51e577ce5edd0a4be7 6.11 |
| Root:Debian:13 | debian | rootio-linux |
< 6.12.74-2.root.io.110 Fix: upgrade to 6.12.74-2.root.io.110
|
| Root:Ubuntu:24.04 | – | linux |
< 6.8.0-146.146.aikido.89 < 6.8.0-147.147.aikido.90 Fix: upgrade to 6.8.0-146.146.aikido.89
|
| Root:Ubuntu:24.04 | – | rootio-linux |
< 6.8.0-146.146.aikido.89 < 6.8.0-147.147.aikido.90 Fix: upgrade to 6.8.0-146.146.aikido.89
|
| Root:Debian:13 | – | linux |
< 6.12.113-1.aikido.163 Fix: upgrade to 6.12.113-1.aikido.163
|
| Root:Debian:13 | – | rootio-linux |
< 6.12.113-1.aikido.163 Fix: upgrade to 6.12.113-1.aikido.163
|
Original advisory text
CVE-2026-23321 in linux - Patched by Root
Root has patched CVE-2026-23321 in the linux package for Root:Debian:13. Multiple fixed versions available.
References
- https://git.kernel.org/stable/c/67f34ab318807989b57dfdb0f79e2d4e57018290 URL
- https://security-tracker.debian.org/tracker/CVE-2026-23321 Vendor Advisory
- https://git.kernel.org/stable/c/a64aa7db39392add5be09dffaedbf1f0ce5554df URL
- https://git.kernel.org/stable/c/c5c877e140e5f46023a74a51e577ce5edd0a4be7 URL
- https://ubuntu.com/security/notices/USN-8567-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8574-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8574-2 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8595-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8595-2 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8606-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8607-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8608-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8619-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8665-1 Vendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-23321 Vendor Advisory
- https://www.cve.org/CVERecord?id=CVE-2026-23321 Third Party Advisory
- https://git.kernel.org/linus/579a752464a64cb5f9139102f0e6b90a1f595ceb Third Party Advisory
- https://ubuntu.com/security/CVE-2026-23321 Third Party Advisory
- https://git.kernel.org/stable/c/05799c2f1ca5eb13d65764dda688d02021b65e06 URL
- https://git.kernel.org/stable/c/198824ccfa64ffebd918bf99c939bd8170a4a4d8 URL
- https://git.kernel.org/stable/c/579a752464a64cb5f9139102f0e6b90a1f595ceb URL
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23321... Vendor Advisory
- https://ubuntu.com/security/notices/USN-8596-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8595-3 Vendor Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html URL
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html URL
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git Product
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html URL
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html URL
- https://ubuntu.com/security/notices/USN-8609-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8574-3 Vendor Advisory
Internet-facing
60 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit (estimated)
- Gives an attacker partial control (estimated)
Severity
3.3
Low
Timeline
Published17 Oct 2026
Updated17 Oct 2026
First seen25 Mar 2026
Sources
DEBIAN-CVE-2026-23321 · OSV
CVE-2026-23321 · OSV
CVE-2026-23321 · NVD
CVE-2026-23321 · MITRE
UBUNTU-CVE-2026-23321 · OSV
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