Top 50 Vendors By Total Number Of "Distinct" Vulnerabilities in 1999
| Vendor Name | Number of Vulnerabilities | |
|---|---|---|
| 1 | Microsoft | 172 |
| 2 | SUN | 54 |
| 3 | Redhat | 40 |
| 4 | Debian | 26 |
| 5 | IBM | 22 |
| 6 | Netscape | 21 |
| 7 | Cisco | 21 |
| 8 | SCO | 20 |
| 9 | Linux | 19 |
| 10 | Suse | 18 |
| 11 | Freebsd | 18 |
| 12 | HP | 17 |
| 13 | Openbsd | 13 |
| 14 | Netbsd | 13 |
| 15 | Caldera | 13 |
| 16 | SGI | 10 |
| 17 | Apache | 8 |
| 18 | ISC | 8 |
| 19 | Novell | 8 |
| 20 | Ipswitch | 8 |
| 21 | Apple | 7 |
| 22 | Bsdi | 7 |
| 23 | Digital | 7 |
| 24 | Slackware | 6 |
| 25 | Trend Micro | 6 |
| 26 | Matt Wright | 6 |
| 27 | SSH | 5 |
| 28 | CDE | 5 |
| 29 | Symantec | 5 |
| 30 | Hughes | 4 |
| 31 | Oracle | 4 |
| 32 | University Of Washington | 4 |
| 33 | Compaq | 4 |
| 34 | GNU | 4 |
| 35 | Ramp Networks | 4 |
| 36 | BMC | 4 |
| 37 | True North | 4 |
| 38 | KDE | 4 |
| 39 | Lotus | 4 |
| 40 | Checkpoint | 3 |
| 41 | Proftpd Project | 3 |
| 42 | Windowmaker | 3 |
| 43 | University Of Kansas | 3 |
| 44 | Seattle Lab Software | 3 |
| 45 | Computer Software Manufaktur | 3 |
| 46 | Broadcom | 3 |
| 47 | Mirabilis | 3 |
| 48 | Eric Allman | 3 |
| 49 | Realnetworks | 3 |
| 50 | Intel | 3 |