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5.5
CVE-2026-64253: Ubuntu 22.04 Linux kernels could let attackers gain admin rights
CVE-2026-64253 · published 5 days ago
Summary
The standard Linux kernel packages for Ubuntu 22.04, including the regular, hardware‑enablement, and cloud versions, can be tricked into giving a malicious user full system control. This could let an attacker install software, view confidential data, or disrupt services. Install the latest kernel updates from your package manager as soon as possible to close the gap.
What to do
- Update debian linux to version 6.12.95-1.
- Update debian linux to version 7.1.3-1.
- Update canonical rootio-linux to version 5.15.0-186.196.aikido.107.
- Update canonical rootio-linux to version 5.15.0-186.196.aikido.108.
- Update canonical linux-aws-7.0 to version 7.0.0-1012.12~24.04.1.
- Update canonical linux-azure-7.0 to version 7.0.0-1014.14~24.04.1.
- Update canonical linux-gcp-7.0 to version 7.0.0-1011.11~24.04.1.
- Update canonical linux-hwe-7.0 to version 7.0.0-31.31~24.04.1.
- Update canonical linux-nvidia-7.0 to version 7.0.0-1018.18~24.04.1.
- Update canonical linux-oracle-7.0 to version 7.0.0-1011.11~24.04.1.
- Update canonical linux-riscv-7.0 to version 7.0.0-31.31.1~24.04.1.
- Update canonical linux to version 7.0.0-31.31.
- Update canonical linux-aws to version 7.0.0-1012.12.
- Update canonical linux-azure to version 7.0.0-1014.14.
- Update canonical linux-gcp to version 7.0.0-1011.11.
- Update canonical linux-gke to version 7.0.0-1006.7.
- Update canonical linux-ibm to version 7.0.0-1013.13.
- Update canonical linux-nvidia to version 7.0.0-1018.18.
- Update canonical linux-nvidia-bos to version 7.0.0-2018.18.
- Update canonical linux-oem-7.0 to version 7.0.0-1013.13.
- Update canonical linux-oracle to version 7.0.0-1011.11.
- Update canonical linux-raspi to version 7.0.0-1019.19.
- Update canonical linux-realtime to version 7.0.0-31.31.1.
- Update canonical linux-riscv to version 7.0.0-31.31.1.
- Update linux kernel to version 7.1.3.
- Update linux to version 5.15.0-198.208.aikido.116.
- Update rootio-linux to version 5.15.0-198.208.aikido.116.
- Update canonical linux-azure-fde-7.0 to version 7.0.0-1013.13~24.04.1.
- Update canonical linux-azure-fde to version 7.0.0-1013.13.
- Update linux to version 5.15.0-202.212.aikido.118.
- Update rootio-linux to version 5.15.0-202.212.aikido.118.
- Update linux linux to version ee0801aceabdf583392477baf69a290b09448b8f or later.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| Debian:13 | debian | linux |
< 6.12.95-1 Fix: upgrade to 6.12.95-1
|
| Debian:14 | debian | linux |
< 7.1.3-1 Fix: upgrade to 7.1.3-1
|
| 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-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 |
Showing 50 of 134. 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-fde-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-fde-6.2 | All versions |
| 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-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-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-nvidia-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-nvidia-6.5 | All versions |
| 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-realtime | 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-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: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-aws-7.0 |
< 7.0.0-1012.12~24.04.1 Fix: upgrade to 7.0.0-1012.12~24.04.1
|
| 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-7.0 |
< 7.0.0-1014.14~24.04.1 Fix: upgrade to 7.0.0-1014.14~24.04.1
|
| Ubuntu:24.04:LTS | canonical | linux-azure-fde-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-azure-fde-7.0 |
< 7.0.0-1013.13~24.04.1 Fix: upgrade to 7.0.0-1013.13~24.04.1
|
| Ubuntu:24.04:LTS | canonical | linux-azure-nvidia-6.14 | All versions |
| 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-gcp-7.0 |
< 7.0.0-1011.11~24.04.1 Fix: upgrade to 7.0.0-1011.11~24.04.1
|
| 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-hwe-7.0 |
< 7.0.0-31.31~24.04.1 Fix: upgrade to 7.0.0-31.31~24.04.1
|
| Ubuntu:24.04:LTS | canonical | linux-lowlatency-hwe-6.11 | All versions |
| 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-7.0 |
< 7.0.0-1018.18~24.04.1 Fix: upgrade to 7.0.0-1018.18~24.04.1
|
| 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-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-oracle-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-oracle-7.0 |
< 7.0.0-1011.11~24.04.1 Fix: upgrade to 7.0.0-1011.11~24.04.1
|
| Ubuntu:24.04:LTS | canonical | linux-raspi-realtime | 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-riscv-7.0 |
< 7.0.0-31.31.1~24.04.1 Fix: upgrade to 7.0.0-31.31.1~24.04.1
|
| Ubuntu:Nvidia-BlueField:24.04:LTS | canonical | linux-bluefield | All versions |
| 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:26.04:LTS | canonical | linux |
< 7.0.0-31.31 Fix: upgrade to 7.0.0-31.31
|
| Ubuntu:26.04:LTS | canonical | linux-aws |
< 7.0.0-1012.12 Fix: upgrade to 7.0.0-1012.12
|
| Ubuntu:26.04:LTS | canonical | linux-ibm |
< 7.0.0-1013.13 Fix: upgrade to 7.0.0-1013.13
|
| Ubuntu:26.04:LTS | canonical | linux-nvidia |
< 7.0.0-1018.18 Fix: upgrade to 7.0.0-1018.18
|
| Ubuntu:26.04:LTS | canonical | linux-nvidia-bos |
< 7.0.0-2018.18 Fix: upgrade to 7.0.0-2018.18
|
| Ubuntu:26.04:LTS | canonical | linux-oem-7.0 |
< 7.0.0-1013.13 Fix: upgrade to 7.0.0-1013.13
|
| Ubuntu:26.04:LTS | canonical | linux-oracle |
< 7.0.0-1011.11 Fix: upgrade to 7.0.0-1011.11
|
| Ubuntu:26.04:LTS | canonical | linux-raspi |
< 7.0.0-1019.19 Fix: upgrade to 7.0.0-1019.19
|
| – | linux | linux_kernel |
>= 6.9, < 6.12.95 >= 6.13, < 6.18.38 >= 6.19, < 7.1.3 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| – | linux | linux |
< ee0801aceabdf583392477baf69a290b09448b8f 6.9 |
| Root:Ubuntu:22.04 | canonical | rootio-linux |
< 5.15.0-186.196.aikido.107 < 5.15.0-186.196.aikido.108 Fix: upgrade to 5.15.0-186.196.aikido.107
|
| Ubuntu:26.04:LTS | canonical | linux-azure |
< 7.0.0-1014.14 Fix: upgrade to 7.0.0-1014.14
|
| Ubuntu:26.04:LTS | canonical | linux-gcp |
< 7.0.0-1011.11 Fix: upgrade to 7.0.0-1011.11
|
| Ubuntu:26.04:LTS | canonical | linux-gke |
< 7.0.0-1006.7 Fix: upgrade to 7.0.0-1006.7
|
| Ubuntu:26.04:LTS | canonical | linux-realtime |
< 7.0.0-31.31.1 Fix: upgrade to 7.0.0-31.31.1
|
| Ubuntu:26.04:LTS | canonical | linux-riscv |
< 7.0.0-31.31.1 Fix: upgrade to 7.0.0-31.31.1
|
| Linux | linux | kernel |
>= 6.19.0, < 7.1.3 Fix: upgrade to 7.1.3
|
| Root:Ubuntu:22.04 | – | linux |
< 5.15.0-198.208.aikido.116 < 5.15.0-202.212.aikido.118 Fix: upgrade to 5.15.0-198.208.aikido.116
|
| Root:Ubuntu:22.04 | – | rootio-linux |
< 5.15.0-198.208.aikido.116 < 5.15.0-202.212.aikido.118 Fix: upgrade to 5.15.0-198.208.aikido.116
|
| Ubuntu:26.04:LTS | canonical | linux-azure-fde |
< 7.0.0-1013.13 Fix: upgrade to 7.0.0-1013.13
|
Original advisory text
CVE-2026-64253 in linux - Patched by Root
Root has patched CVE-2026-64253 in the linux package for Root:Ubuntu:22.04. Multiple fixed versions available.
References
- https://ubuntu.com/security/CVE-2026-64253 Third Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2026-64253 Third Party Advisory
- https://git.kernel.org/linus/fd38b75c4b43295b10d69772a46d1c74dbd6fc81 Third Party Advisory
- https://git.kernel.org/stable/c/77bba61a20f1b3d206f4f90e10a7bb3cd90b9619 Third Party Advisory
- https://git.kernel.org/stable/c/99e6c712cc300883b8cbf03347d5359ec1a4d6dd Third Party Advisory
- https://git.kernel.org/stable/c/ee0801aceabdf583392477baf69a290b09448b8f Third Party Advisory
- https://git.kernel.org/stable/c/fd38b75c4b43295b10d69772a46d1c74dbd6fc81 Third Party Advisory
- https://security-tracker.debian.org/tracker/CVE-2026-64253 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8726-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8727-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8728-1 Vendor Advisory
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64253... Vendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-64253 Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git Product
- https://ubuntu.com/security/notices/USN-8726-4 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8728-3 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8760-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8726-2 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8726-3 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8800-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8760-2 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8728-2 Vendor Advisory
Severity
5.5
Medium
Type
CWE-476NULL Pointer Dereference
Timeline
Published30 Oct 2026
Updated30 Oct 2026
First seen24 Jul 2026
Sources
DEBIAN-CVE-2026-64253 · OSV
CVE-2026-64253 · NVD
CVE-2026-64253 · MITRE
UBUNTU-CVE-2026-64253 · OSV
CVE-2026-64253 · OSV
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