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CVE-2026-23409

🗓️ 01 Apr 2026 09:16:00Reported by ubuntu.comType 
ubuntucve
 ubuntucve
🔗 ubuntu.com👁 3 Views

Linux kernel AppArmor diff-encode verification fix prevents loops with double marking to terminate chains.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-23409
1 Apr 202608:36
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CVE-2026-23409 affecting package kernel for versions less than 6.6.130.1-1
30 Mar 202616:12
cbl_mariner
Circl
CVE-2026-23409
1 Apr 202611:15
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CNNVD
Linux kernel 安全漏洞
1 Apr 202600:00
cnnvd
CVE
CVE-2026-23409
1 Apr 202608:36
cve
Cvelist
CVE-2026-23409 apparmor: fix differential encoding verification
1 Apr 202608:36
cvelist
Debian CVE
CVE-2026-23409
1 Apr 202608:36
debiancve
Tenable Nessus
EulerOS 2.0 SP11 : kernel (EulerOS-SA-2026-2209)
9 Jun 202600:00
nessus
Tenable Nessus
EulerOS 2.0 SP11 : kernel (EulerOS-SA-2026-2247)
9 Jun 202600:00
nessus
Tenable Nessus
EulerOS 2.0 SP13 : kernel (EulerOS-SA-2026-2293)
10 Jun 202600:00
nessus
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OSOS VersionArchitecturePackagePackage VersionFilename
Ubuntu18.04anylinux-raspi-5.45.4.0-1139.152~18.04.1linux-raspi-5.4_5.4.0-1139.152~18.04.1_any.deb
Ubuntu20.04anylinux5.4.0-227.247linux_5.4.0-227.247_any.deb
Ubuntu22.04anylinux5.15.0-173.183linux_5.15.0-173.183_any.deb
Ubuntu24.04anylinux6.8.0-106.106linux_6.8.0-106.106_any.deb
Ubuntu25.10anylinux6.17.0-19.19linux_6.17.0-19.19_any.deb
Ubuntu18.04anylinux-hwe-5.45.4.0-227.247~18.04.1linux-hwe-5.4_5.4.0-227.247~18.04.1_any.deb
Ubuntu20.04anylinux-hwe-5.155.15.0-173.183~20.04.1linux-hwe-5.15_5.15.0-173.183~20.04.1_any.deb
Ubuntu22.04anylinux-hwe-6.86.8.0-106.106~22.04.1linux-hwe-6.8_6.8.0-106.106~22.04.1_any.deb
Ubuntu24.04anylinux-hwe-6.176.17.0-19.19~24.04.2linux-hwe-6.17_6.17.0-19.19~24.04.2_any.deb
Ubuntu20.04anylinux-kvm5.4.0-1143.152linux-kvm_5.4.0-1143.152_any.deb
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23 May 2026 09:38Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.15.5
EPSS0.00177
3