Ubuntu Security

New Ubuntu Vulnerability Turns System Cleanup into a Root Access Backdoor CIFSwitch local root exploit cifs-utils privilege escalation Linux Kernel Root Exploit CVE-2025-39946 PoC CVE-2023-2598 PoC Ubuntu LPE Vulnerability CVE-2026-3888

Do Son March 18, 2026

The Qualys Threat Research Unit has detailed a new Local Privilege Escalation (LPE) vulnerability, tracked as CVE-2026-3888,...

Ubuntu Security Alert: Three Ways to Bypass User Namespace Restrictions Ubuntu 26.10 Stonking Stingray Ubuntu Security Alert: Three Ways to Bypass User Namespace Restrictions

Do Son March 31, 2025

Qualys Threat Research Unit (TRU) has recently disclosed three security bypasses in Ubuntu’s unprivileged user namespace restrictions....