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high advisory

Debian LTS Linux Kernel Vulnerability Allows Privilege Escalation and Data Breach

A vulnerability in the Debian LTS Linux kernel allows attackers to perform privilege escalation and breach data confidentiality, specifically affecting Debian 11 bullseye versions prior to 5.10.251-5 and 6.1.172-1~deb11u1; tracked as CVE-2026-46333.

Debian 11 bullseye kernel vulnerability privilege-escalation linux debian
3r 1t
critical advisory

Exim Mail Transfer Agent User-After-Free Remote Code Execution Vulnerability (CVE-2026-45185)

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.

Exim rce vulnerability cve-2026-45185 user-after-free gnutls
2r 1t 1c
high threat

Dirty Frag Linux Kernel Local Privilege Escalation Vulnerability

The Dirty Frag vulnerability (CVE-2026-43284 and CVE-2026-43500) is a Linux kernel local privilege escalation that allows an unprivileged local user to gain root privileges by exploiting flaws in the networking subsystem to overwrite protected file contents in the page cache.

exploited Linux kernel linux privilege-escalation vulnerability dirty_frag
2r 1t
critical advisory

CVE-2026-31431 'Copy Fail' Linux Kernel Privilege Escalation

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.

Amazon Linux 2023 +3 privilege-escalation linux kernel
2r 1t 1c