Ubuntu

Adversaries can exploit CVE-2026-46331 to bypass AppArmor and unprivileged user namespace restrictions on Linux systems by abusing the `aa-exec` utility with `trinity`, `chrome`, or `flatpak` AppArmor profiles, leading to privilege escalation when the `aa-exec` binary itself is executed from a non-standard path.

Multiple vulnerabilities exist in the ubuntu-pro-client within Ubuntu Linux, allowing an attacker to execute arbitrary program code with administrator privileges and disclose confidential information.

A remote, unauthenticated attacker can exploit a vulnerability in Django, Debian Linux, and Ubuntu Linux to initiate a Denial of Service attack, potentially disrupting services and making them unavailable to legitimate users.

CVE-2026-53359 is a high-severity use-after-free vulnerability affecting the KVM virtualization component on x86 architectures within the Linux kernel, stemming from an unexpected role in shadow paging, which could lead to host system compromise.

CVE-2026-45185, a user-after-free vulnerability in Exim versions 4.97 through 4.99.2, allows an unauthenticated remote attacker to execute arbitrary code by sending crafted SMTP traffic with BDAT chunking during TLS shutdown.

The 'Copy Fail' vulnerability (CVE-2026-31431) in the Linux kernel allows a local attacker to escalate privileges to root, potentially leading to container breakout and lateral movement in cloud environments.

A local privilege escalation vulnerability, dubbed 'Copy Fail' (CVE-2026-31431), affects Linux kernels released since 2017, allowing an unprivileged local attacker to gain root permissions by exploiting a logic bug in the authencesn cryptographic template.