Security-evaluated operating system
Trusted Solaris 8 was a security-focused version of the Solaris Unix operating system. Aimed primarily at the government computing sector, Trusted Solaris adds detailed auditing of all tasks, pluggable authentication, mandatory access control, additional physical authentication devices, and fine-grained access control(FGAC). Versions of Trusted Solaris through version 8 are Common Criteria certified. See  and  Trusted Solaris Version 8 received the EAL4 certification level augmented by a number of protection profiles. See  for explanation of The Evaluation Assurance Levels.
BAE Systems' STOP
BAE Systems' STOP version 6.0.E received an EAL4+ in April 2004 and the 6.1.E version received an EAL5+ certification in March 2005. STOP version 6.4 U4 received an EAL5+ certification in July 2008. Versions of STOP prior to STOP 6 have held B3 certifications under TCSEC. While STOP 6 is binary compatible with Linux, it does not derive from the Linux kernel. See  for an overview of the system.
Red Hat Enterprise Linux 5
Red Hat Enterprise Linux 6
Novell SUSE Linux Enterprise Server
The following versions of Microsoft Windows have received EAL 4 Augmented ALC_FLR.3 certification:
- Windows 2000 Server, Advanced Server, and Professional, each with Service Pack 3 and Q326886 Hotfix operating on the x86 platform were certified as CAPP/EAL 4 Augmented ALC_FLR.3 in October 2002. (This includes standard configurations as Domain Controller, Server in a Domain, Stand-alone Server, Workstation in a Domain, Stand-alone Workstation)
- Windows XP Professional and Embedded editions, with Service Pack 2, and Windows Server 2003 Standard and Enterprise editions (32-bit and 64-bit), with Service Pack 1, were all certified in December 2005.
Mac OS X
Apple's Mac OS X & Mac OS X Server running the latest version 10.4.6 have not yet been fully evaluated however the Common Criteria Tools package is available.
HP OpenVMS and SEVMS
Green Hills INTEGRITY-178B
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- OpenVMS security presentation