privilege-escalation Security Research

3 articles in this topic.

May 2026

1 article
  1. CVE-2026-41702: Forty-Seven Microseconds in /var/run/vmware/cnx-tmp

    A TOCTOU race in VMware Fusion 25's vmx-apple binary that turns booting a VM into arbitrary chown, then arbitrary chown into a passwordless root shell via PAM injection. World-writable sticky directory, SUID-root callee, bind() and chown() both following symlinks, a 5-15 microsecond window between them. Full LPE chain in 40 seconds, single VM boot. The interesting part is what made it reliable.

    23 min read

March 2026

1 article
  1. CVE-2026-4105: systemd-machined Privilege Escalation - 72 Minutes from Drop to Bypass

    CVE-2026-4105 dropped this morning - local privilege escalation to root on desktop Linux via systemd-machined. Two D-Bus calls, no authentication. We fed it to CVEForge before the advisory was an hour old. Seventy-two minutes later: confirmed exploit, Docker labs for vulnerable and patched builds, and a bypass proving the vendor's fix is incomplete. The analysis agent said the fix was thorough. The bypass agent proved it wrong.

    24 min read

February 2026

1 article
  1. Foreman Command Injection and Telnetd Privilege Escalation - A Dropdown, a Blacklist, and Two Very Different Fixes

    Foreman command injection via the REST API (CVE-2025-10622) and telnetd privilege escalation through environment variable injection (CVE-2026-28372) - CVEForge analyzes both end-to-end. One fix is a proper server-side whitelist. The other is a single unsetenv() call on a blacklist from 1995. Both produced working PoCs. Only one produced a fix we'd trust.

    11 min read