PT-2026-43760 · Linux+1 · Linux Kernel+1

CVE-2026-45893 · Published 2026-05-27 · Updated 2026-07-28

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A flaw exists in the AppArmor module where table creation from source blobs originating in userspace may involve unaligned memory accesses. This issue occurs because the source blob might be unaligned, potentially leading to system instability or errors during the copying process.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-45893

OESA-2026-2676

USN-8492-1

USN-8492-2

USN-8492-3

USN-8492-4

USN-8492-5

USN-8497-1

USN-8498-1

USN-8499-1

USN-8606-1

USN-8607-1

USN-8609-1

USN-8619-1

Affected Products

Linuxmint

Linux Kernel

References · 1519

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45893.json · Exploit
• https://ubuntu.com/security/CVE-2026-31730 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-43445 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-31720 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-45938 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-63860 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-45991 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-68736 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-43227 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23343 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-45999 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-53304 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-31725 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-46018 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23339 · Vendor Advisory