(RCE) vulnerability which could allow a remote attacker to insert malicious code into a self-extracting executable (SFX) file being created by a user, "putting over 500 million users of the software at risk". However, examination of the claim revealed that, while the vulnerability existed, the result was merely an SFX which delivered its payload when executed; published responses dismissed the threat, one saying "If you can find suckers who will trust a .exe labelled as self-extracting archive ... then you can trick them into running your smuggled JavaScript". History Versions Command line RAR and UNRAR were first released in autumn 1993. Early development version WinRAR 1.54b was released in 1995 as Windows 3.x software. 3.00 (2002-05): the new RAR3 archive format is implemented. The new archives cannot be managed by older versions of WinRAR. Solid compression and WAV audio lossless compression features are added. 3.41 (2004-12): adds support for Linux .Z archives like GZIP and BZIP2. New options include storing entire file paths and restoring compressed NTFS files. 3.50 (2005-08): adds support for interface skins and Windows XP Professional x64 Edition. 3.60 (2006-08): adds multithreaded version of the compression algorithm, which improves compression speed on systems with multiple dual-core or hyper-threading-enabled CPUs. 3.80 (2008-09): adds support for ZIP archives, which contain Unicode file names in UTF-8. 3.90 (2009-05): adds support for the x86-64 architecture and Windows 7. Multithreaded support is enhanced. 3.91 is the last release that supports Valencian. 3.92 is the last release that supports Serbian Cyrillic and Serbian Latin. 4.00 (2011-03): decompression is sped up by up to 30%. Windows 98, Windows ME, and Windows NT are no longer supported; the minimum Windows version required is Windows 2000. 4.10 (2012-01): removes all ZIP limitations now allowing unlimited number of files and archive size. WinRAR now also allows creation of multivolume ZIP files. ZIP archives now include Unicode file names. 4.20 (2012-06): compression speed in SMP mode is increased significantly, but this improvement was made at the expense of increased memory usage. ZIP compression now uses SMP as well. The default SMP mode cannot handle text; text compression is significantly worse unless additional switches are used. Also, Windows 2000 compatibility was removed. 5.00 (2013-09): the RAR5 archive format is implemented. RAR5 compressed archives cannot be managed by old versions of WinRAR. The RAR 5 format improves multi-core processor utilization, and adds a larger dictionary size of up to 1