CVE-2026-61897: Improper Check for Dropped Privileges

An Ubuntu-specific patch to AccountsService before 23.13.9-8ubuntu7 only partially drops privileges before launching language helper scripts. It changes the effective UID/GID to the target user but leaves the real UID as 0 root. A shell spawned by a helper script inherits ruid=0 and may reset its...

Siemens SIMATIC S7-1500 Improper Check for Dropped Privileges (CVE-2019-18276)

An issue was discovered in disableprivmode in shell.c in GNU Bash through 5.0 patch 11. By default, if Bash is run with its effective UID not equal to its real UID, it will drop privileges by setting its effective UID to its real UID. However, it does so incorrectly. On Linux and other systems th...

CVE-2012-1187: Improper Check for Dropped Privileges

Bitlbee does not drop extra group privileges correctly in unix.c...