New Vulnerabilities per Month

Number of OS Vulnerabilities by Year

OS

1997

1998

1999

2000

2001

AIX

21

38

10

15

6

BSD (aggr.)

9

8

25

52

28

BSD/OS

7

5

4

1

3

BeOS

0

0

0

5

1

Caldera

4

3

14

28

27

Connectiva

0

0

0

0

0

Debian

3

2

31

55

28

FreeBSD

5

2

17

36

17

HP-UX

9

5

11

26

16

IRIX

28

15

9

14

7

Linux (aggr.)

14

25

99

153

96

MacOS

0

1

5

1

4

MacOS X Server

0

0

1

0

0

Mandrake

0

0

2

46

36

NetBSD

2

4

10

20

9

Netware

1

0

4

3

1

OpenBSD

1

2

4

17

14

RedHat

6

10

47

95

54

SCO Unix

3

3

10

2

21

Slackware

4

8

11

11

10

Solaris

24

33

34

22

33

SuSE

0

1

23

31

21

TurboLinux

0

0

2

20

2

Unixware

2

3

14

4

9

Windows 3.1x/95/98

3

1

46

40

14

Windows NT/2000

10

8

78

97

42

OS Vulnerabilities

OS Vulnerabilities

Top Vulnerable Packages 2001

Packages

# Vulns

MandrakeSoft Linux Mandrake 7.2

33

RedHat Linux 7.0

28

MandrakeSoft Linux Mandrake 7.1

27

Debian Linux 2.2

26

Sun Solaris 8.0

24

Sun Solaris 7.0

24

Microsoft Windows 2000

24

MandrakeSoft Linux Mandrake 7.0

22

SCO Open Server 5.0.6

21

RedHat Linux 6.2 i386

20

MandrakeSoft Linux Mandrake 6.1

20

MandrakeSoft Linux Mandrake 6.0

20

Wirex Immunix OS 7.0-Beta

19

Sun Solaris 2.6

19

RedHat Linux 6.2 sparc

18

RedHat Linux 6.2 alpha

18

Debian Linux 2.2 sparc

18

Debian Linux 2.2 arm

18

Debian Linux 2.2 alpha

18

Debian Linux 2.2 68k

18

Top Vulnerable Packages 2000

Packages

# Vulns

Microsoft Windows NT 4.0

71

RedHat Linux 6.2 i386

65

RedHat Linux 6.2 sparc

53

RedHat Linux 6.2 alpha

53

Microsoft Windows 2000

52

Debian Linux 2.2

48

RedHat Linux 6.1 i386

47

Microsoft Windows 98

40

RedHat Linux 6.1 sparc

39

RedHat Linux 6.1 alpha

39

MandrakeSoft Linux Mandrake 7.0

37

Microsoft Windows 95

35

RedHat Linux 6.0 i386

33

Microsoft IIS 4.0

29

Microsoft BackOffice 4.5

29

Microsoft BackOffice 4.0

29

RedHat Linux 7.0

28

MandrakeSoft Linux Mandrake 7.1

26

RedHat Linux 6.0 alpha

25

Conectiva Linux 5.1

25

Top Vulnerable Packages 1999

Packages

# Vulns

Microsoft Windows NT 4.0

75

Microsoft Windows 98

44

Microsoft Windows 95

40

Microsoft Windows NT 4.0SP3

33

Microsoft Windows NT 4.0SP1

32

Microsoft Windows NT 4.0SP2

31

Microsoft Windows NT 4.0SP4

30

Microsoft Internet Explorer 5.0 for Windows 98

29

Microsoft Internet Explorer 5.0 for Windows NT 4.0

28

Microsoft Internet Explorer 5.0 for Windows 95

28

Microsoft BackOffice 4.0

28

Microsoft BackOffice 4.5

27

Sun Solaris 7.0

26

Microsoft IIS 4.0

25

Microsoft Windows NT 4.0SP5

23

RedHat Linux 5.2 i386

22

Sun Solaris 7.0_x86

21

Sun Solaris 2.6_x86

21

Sun Solaris 2.6

21

RedHat Linux 6.0 i386

21

Top Vulnerable Packages 1998

Packages

# Vulns

IBM AIX 4.3

36

IBM AIX 4.2.1

29

IBM AIX 4.2

29

Sun Solaris 2.6

28

Sun Solaris 2.6_x86

25

IBM AIX 4.1

25

IBM AIX 4.1.5

24

IBM AIX 4.1.4

24

IBM AIX 4.1.3

24

IBM AIX 4.1.2

24

IBM AIX 4.1.1

24

Sun Solaris 2.5.1_x86

23

Sun Solaris 2.5.1

23

Sun Solaris 2.5_x86

22

Sun Solaris 2.5

21

Sun Solaris 2.4

18

Sun Solaris 2.4_x86

17

Sun Solaris 2.3

13

Sun Solaris 2.5.1_ppc

10

SGI IRIX 6.4

10

Top Vulnerable Packages 1997

Packages

# Vulns

SGI IRIX 6.2

25

Sun Solaris 2.5.1

23

Sun Solaris 2.5

23

SGI IRIX 5.3

23

Sun Solaris 2.5_x86

22

Sun Solaris 2.5.1_x86

22

Sun Solaris 2.4

22

Sun Solaris 2.4_x86

21

SGI IRIX 6.3

20

IBM AIX 4.1

19

Sun Solaris 2.3

18

SGI IRIX 6.1

18

IBM AIX 4.2

17

SGI IRIX 5.2

15

SGI IRIX 6.4

14

IBM AIX 4.1.5

14

IBM AIX 4.1.4

14

IBM AIX 4.1.3

14

IBM AIX 4.1.1

14

Sun Solaris 2.5.1_ppc

13



This page was last updated on Friday December 16, 2005