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Vendor Name Number of Total Vulnerabilities # Of Vulnerabilities Weighted Average % Of Total
0-1 1-2 2-3 3-4 4-5 5-6 6-7 7-8 8-9 9+ 0-1 1-2 2-3 3-4 4-5 5-6 6-7 7-8 8-9 9+
1 Microsoft 2305 2 4 135 12 219 591 121 622 16 583 7.30 0 0 6 1 10 26 5 27 1 25
2 Apple 1171 2 13 78 7 184 220 172 264 5 226 7.00 0 1 7 1 16 19 15 23 0 19
3 SUN 1155 1 17 76 14 224 191 81 369 2 180 6.90 0 1 7 1 19 17 7 32 0 16
4 IBM 970 2 13 47 14 163 175 74 288 5 189 7.10 0 1 5 1 17 18 8 30 1 19
5 Oracle 798 12 28 21 138 156 86 132 5 220 7.20 0 2 4 3 17 20 11 17 1 28
6 Cisco 716 1 1 24 9 48 189 46 292 7 99 7.30 0 0 3 1 7 26 6 41 1 14
7 Mozilla 697 1 54 5 123 172 55 134 153 6.90 0 0 8 1 18 25 8 19 0 22
8 Linux 654 1 22 142 16 186 60 39 168 1 19 5.60 0 3 22 2 28 9 6 26 0 3
9 HP 611 1 4 36 3 106 92 32 204 2 131 7.20 0 1 6 0 17 15 5 33 0 21
10 Redhat 485 17 65 6 70 82 28 152 2 63 6.50 0 4 13 1 14 17 6 31 0 13
11 Adobe 299 17 1 61 34 18 30 138 7.70 0 0 6 0 20 11 6 10 0 46
12 Novell 285 1 3 10 4 39 94 15 65 54 6.90 0 1 4 1 14 33 5 23 0 19
13 Apache 277 1 13 7 69 104 23 46 14 6.20 0 0 5 3 25 38 8 17 0 5
14 PHP 265 18 2 27 68 36 88 26 6.90 0 0 7 1 10 26 14 33 0 10
15 Freebsd 264 4 38 7 38 50 17 89 21 6.40 0 2 14 3 14 19 6 34 0 8
16 Symantec 250 3 10 6 37 57 16 63 1 57 7.10 0 1 4 2 15 23 6 25 0 23
17 Joomla 248 1 1 16 21 42 157 10 7.50 0 0 0 0 6 8 17 63 0 4
18 SGI 246 2 24 4 20 50 11 96 39 7.00 0 1 10 2 8 20 4 39 0 16
19 Debian 244 6 35 5 31 43 17 78 1 28 6.50 0 2 14 2 13 18 7 32 0 11
20 GNU 235 1 5 30 7 36 51 19 68 18 6.30 0 2 13 3 15 22 8 29 0 8
21 Suse 215 2 31 21 37 14 80 30 6.80 0 1 14 0 10 17 7 37 0 14
22 Drupal 209 7 29 67 33 30 36 2 5 5.90 0 0 3 14 32 16 14 17 1 2
23 Openbsd 199 3 16 4 25 54 8 58 1 30 6.80 0 2 8 2 13 27 4 29 1 15
24 BEA 172 2 14 2 30 62 17 38 7 6.20 0 1 8 1 17 36 10 22 0 4
25 CA 157 1 6 23 25 5 39 58 7.70 0 1 4 0 15 16 3 25 0 37
26 Wordpress 149 3 2 54 30 20 33 1 6 6.30 0 0 2 1 36 20 13 22 1 4
27 Gentoo 148 3 21 2 8 29 9 46 30 6.90 0 2 14 1 5 20 6 31 0 20
28 Mandrakesoft 140 13 23 1 9 25 3 54 1 11 6.20 0 9 16 1 6 18 2 39 1 8
29 Netbsd 137 3 28 2 22 18 9 40 15 6.20 0 2 20 1 16 13 7 29 0 11
30 SCO 126 3 10 3 20 21 2 53 14 6.80 0 2 8 2 16 17 2 42 0 11
31 KDE 122 1 10 22 23 10 46 10 6.70 0 1 8 0 18 19 8 38 0 8
32 Netscape 119 11 3 8 47 4 32 14 6.60 0 0 9 3 7 39 3 27 0 12
33 Vmware 114 3 5 4 16 15 20 27 2 22 7.00 0 3 4 4 14 13 18 24 2 19
34 Google 114 3 29 28 9 15 30 7.10 0 0 3 0 25 25 8 13 0 26
35 Typo3 114 1 1 34 11 5 56 1 5 6.90 0 0 1 1 30 10 4 49 1 4
36 Ethereal Group 113 1 75 1 28 8 6.80 0 0 0 0 1 66 1 25 0 7
37 Mambo 111 2 8 6 20 68 7 7.50 0 0 2 0 7 5 18 61 0 6
38 Opera Software 107 9 15 41 8 20 14 6.60 0 0 8 0 14 38 7 19 0 13
39 Trend Micro 107 1 8 26 6 29 37 7.90 0 1 0 0 7 24 6 27 0 35
40 Francisco Burzi 101 1 23 27 6 41 3 6.70 0 0 1 0 23 27 6 41 0 3
41 Mysql 97 10 6 26 19 8 17 2 9 6.20 0 0 10 6 27 20 8 18 2 9
42 Ipswitch 97 1 1 9 36 8 31 11 7.00 0 0 1 1 9 37 8 32 0 11
43 Phpbb Group 95 1 1 23 25 10 28 7 6.70 0 0 1 1 24 26 11 29 0 7
44 Realnetworks 92 1 4 3 28 1 23 32 7.70 0 1 4 0 3 30 1 25 0 35
45 Macromedia 88 5 1 6 42 3 26 5 6.60 0 0 6 1 7 48 3 30 0 6
46 Hitachi 87 1 1 21 32 6 19 7 6.50 0 0 1 1 24 37 7 22 0 8
47 Gnome 86 2 10 3 10 15 14 23 9 6.50 0 2 12 3 12 17 16 27 0 10
48 Wireshark 86 1 2 20 47 7 9 6.30 0 0 1 2 23 55 0 8 0 10
49 SAP 82 15 18 6 27 16 7.30 0 0 0 0 18 22 7 33 0 20
50 Phpmyadmin 79 5 4 22 19 9 17 1 2 6.10 0 0 6 5 28 24 11 22 1 3

Vendor(s) with highest weighted average (7.90): Trend Micro  

Weighted average = SUM((Cvss Range (e.g: 2 for range 1-2 )) * (Number of vulnerabilities in that range)) / (Total number of vulnerabilities)
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